Based in Minneapolis, MN, AaCron Anodizing provides aluminum anodizing services since 1968. With two lines, they specialize in finishing extrusions, sheet, and fabricated parts. AaCron serves global manufacturers in architectural, industrial, military, and aerospace markets.
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Hardcoat Anodizing Companies
Last updated: January 2026
This directory lists 99 hardcoat anodizing companies across the United States, from highly specialized aerospace processors to general job shops serving multiple industries.
Buyers engage hardcoat anodizing companies to solve critical performance problems such as significantly increasing wear resistance, providing robust electrical insulation, or enhancing corrosion protection for aluminum parts. Achieving a consistent micron thickness and specific surface hardness (e.g., typically 400-600 HV) across diverse aluminum alloys is a primary driver, often coupled with the need for a high dielectric strength in electrical components.
Supplier types in this space range from large-scale production facilities handling high-volume, commodity components to niche specialists focusing on low-volume, high-precision parts for medical devices or defense systems. Distinguishing factors include their adherence to strict certifications like Nadcap, their in-house metallurgical expertise, capacity for large or uniquely shaped parts, and their ability to work with exotic aluminum alloys that present anodizing challenges.
To ensure a successful project, buyers should prepare detailed engineering drawings, clearly mark critical surfaces for masking, specify the aluminum alloy and temper, and define the required film thickness range (e.g., 50-75 microns). Suppliers expect precise specifications for their quoting process, including any post-anodize machining or finishing steps, and clear instructions regarding acceptable racking mark locations to minimize aesthetic or functional impact.
Company Directory
99 companies nationwide
Based in Rockledge, FL, Accurate Metal Finishing of Florida, Inc. specializes in precision hardcoat anodizing services, meeting MIL-A-8625 standards. They also provide clear and chromate conversion coatings, Teflon coating, and passivation. The company serves military, medical device, aerospace, high-tech, and automotive industries.
Based in Hillside, IL, Ace Anodizing & Impregnating Inc. specializes in Type III hardcoat anodizing, offering clear and black finishes for parts up to 282 inches long. Their comprehensive metal finishing services also include Type II, bright dip, and architectural anodizing, chromate conversion, powder coating, and vacuum resin impregnating. The ISO 9001:2015 certified facility processes large parts, adhering to MIL-specifications and AAMA standards.
Based in San Jose, CA, A & E Elite Metal Finishing offers comprehensive metal finishing solutions. The company specializes in surface treatments like hardcoat anodizing, enhancing durability, corrosion resistance, and aesthetic appeal for industrial and commercial components, serving a diverse client base.
Based in O'Fallon, MO, Aerospace Metals LLC specializes in metal finishing, CNC machining, and sheet metal fabrication. They provide anodizing, plating, and mechanical finishing services for diverse industries such as aerospace & defense, automotive, and medical. The company handles custom manufacturing projects from prototype to production stages.
Based in Paterson, NJ, Aerotech Processing Solutions offers specialized anodizing services compliant with Mil-A-8625 and BAC (Boeing) standards. This NADCAP certified company provides precision metal finishing for the aerospace and high-tech industries, focusing on high quality, competitive pricing, and fast turnaround solutions.
Alexandria Metal Finishers, based in Lorton, VA, specializes in large-capacity aluminum anodizing services. They meet MIL-A-8625, AMS-2469, and MIL-PRF-8625 standards, indicating robust hardcoat anodizing capabilities. Since 1962, the company has served critical industries including aerospace, defense, medical, electronics, and commercial sectors.
Based in Hatfield, PA, A.L. Finishing Company, INC. specializes in aluminum anodizing, chromate conversion, and stainless steel passivation. They offer high-quality metal finishing for military, aerospace, and defense industries, adhering to strict specifications. The company is NADCAP, ISO 9001:2015, and AS9100D certified, with over 30 years of experience.
Based in El Monte, CA, Alumacoat operates as an independent anodizer serving the Western United States. The company specializes in providing quick turn-around times for anodized products. They offer specialized services for various industrial and commercial B2B applications, focusing on efficiency.
American Anodizing Co., located in Fort Wayne, IN, specializes in comprehensive aluminum anodizing services, including hardcoat anodize. They provide full-service metal finishing, offering black hardcoat anodize for enhanced corrosion and wear resistance on industrial parts.
Based in Fort Worth, TX, Anodics Inc. is a Nadcap accredited provider specializing in anodized metal finishing and chromate conversion coating services. They cater to the aerospace and industrial markets, offering a comprehensive suite of metal plating solutions.
Florida Anodize System & Technologies Inc., based in Sanford, FL, specializes in providing comprehensive metal finishing services. They offer advanced Type III hardcoat anodizing, Type II anodizing, chromate conversion, and passivation for various industrial and commercial applications, focusing on quality and efficient turnaround times.
Based in Los Angeles, CA, Anodizing Industries has provided high volume metal finishing services nationwide since 1978. They specialize in Anodizing Types II & III (Hardcoat), architectural anodize, and chem film. The company serves diverse sectors including aerospace, automotive, marine, and military.
Based in Blaine, MN, Arrow Finishing, Inc. provides hardcoat and aluminum anodizing, Nadcap chemical processing, deburring, blasting, and various performance coatings. They specialize in high-volume surface finishing projects, leveraging an experienced engineering team and continuous R&D to deliver precise, efficient, and innovative solutions.
Ballard Aluminum Specialty Services, based in Missouri City, TX, offers comprehensive aluminum finishing solutions for sheet metal and machined parts. With over 60 years of combined experience, they specialize in anodizing, grain finishing, brushing, and strip/re-anodizing. The company also provides consulting, testing, and certifications for product development.
Based in Austin, TX, Brooks Industrial Coatings Inc. provides comprehensive industrial coating services. Their capabilities include Type II and Type III hardcoat anodizing, powder coating, ceramic coating, electroless nickel plating, and phosphate coating, serving a range of industrial applications.
Based in Kenilworth, NJ, B&M Finishers, Inc. specializes in metal finishing and anodizing services for aluminum parts. Established in 1956, they serve B2B customers in the Defense, Aerospace, Automotive, Architectural, Marine, Medical, and Machine and Tool sectors, providing protective coatings.
Based in Santa Fe Springs, CA, Cal-Tron Plating Inc. offers comprehensive metal finishing services. They specialize in Type III Hardcoat Anodize to MIL-A-8625 specifications, alongside Electroless Nickel Plating and Type I and II Anodizing. Additional services include passivation, precision masking, and abrasive blasting.
Certified Metal Finishing, Inc., based in Pompano Beach, Florida, is an established provider of aluminum anodizing and metal finishing services. Serving mission-critical industries like MRO, defense, aerospace, marine, medical, and automotive, the company prioritizes precision and quality with over 100 years of combined team experience.
Chem Processing provides ISO 9001/AS9100 certified hardcoat anodizing, including MIL-A-8625 Type III and hardcoat Teflon® anodizing, for wear resistance and lubricity. They also offer diverse plating services like cadmium and hard chrome, serving military and aerospace specifications.
Chicago Anodizing Company provides Type III Hardcoat Anodizing services, adhering to MIL-A-8625 Class 1 and 2 standards. They also offer Type II Anodizing, chemical conversion coatings, and bright dip. Additional services include blasting, polishing, laser marking, and color matching.
Based in San Antonio, Texas, City Plating and Metal Finishing specializes in comprehensive metal finishing services. They provide Hardcoat Anodizing (Type III) and Type II Anodizing, along with passivation, electropolishing, black oxide, and chemical film conversion. Serving industries like aerospace, medical, and defense, the company offers solutions for enhanced durability and corrosion resistance.
Based in Round Rock, TX, Consolidated Metal Technologies, Inc. (CMT) provides comprehensive OEM metal finishing and coating services. Their capabilities include anodizing, bright nickel, chromate conversion, electroless nickel, passivation, tin, and zinc plating. CMT also offers precision powder coating, wet painting, and cleanroom services for industrial applications.
Based in Garden Grove, CA, Valence Garden Grove provides comprehensive metal finishing services, specializing in Type III hard coat anodizing. Capabilities include various anodizing types, electroless nickel, and gold plating. The company serves industries such as microwave electronics, satellite, defense, and telecommunications with precision finishing.
Courter-Hall Company provides chemical processing and organic finishes, serving industrial and aerospace clients since 1961. Based in Garland, TX, they are ISO 9001:2015 certified, ITAR registered, and an approved supplier for Raytheon and Bell-Helicopter.
Based in Bridgeport, CT, Connecticut Anodizing & Finishing Co. Inc. specializes in Type II and Type III hardcoat anodizing services. The company also provides additional finishing capabilities, including media blasting and masking. They offer convenient pickup and delivery services throughout Connecticut for various industrial and commercial needs.
Danco Anodizing, with over 50 years of experience, provides comprehensive metal finishing. They specialize in hardcoat and other aluminum/titanium anodizing, chemfilm, and precision marking. Danco serves aerospace, medical, and industrial clients from multiple facilities in California and Indiana.
Based in Houston, TX, Diamond Manufacturing provides precision anodizing services for small aluminum parts. They specialize in ISO-certified MIL-A-8625 Type II (clear or dyed) and Type III hardcoat anodizing. Their facility offers tight-tolerance finishes with a typical 3–5 day turnaround for industrial clients.
Based in San Jose, CA, Du-All Anodizing dba GMP Plating, INC. provides comprehensive metal finishing services. They specialize in hardcoat (Type III) and conventional (Type II) anodizing, offering additional capabilities like plating, chemical film, and powder coating. The company has decades of experience serving diverse industrial customers.
Based in Dayton, OH, Electro-Polish Co. specializes in diverse surface finishing, offering Hard Coat Anodizing, Aluminum Anodizing, Powder Coat, Chemfilm, and Electropolish. The company prioritizes quality, fast turn-around times, and dedicated customer service, providing robust metal treatments for industrial clients.
Based in Irvine, CA, Electrolurgy offers advanced metal finishing services, including hard anodizing, painting, and electroless/zinc-nickel plating. Supporting top aerospace clients for 54 years, they deliver precise, quality-driven results, adhering to rigorous NADCAP and AS9100 certifications.
Based in Garden Grove, CA, Electron Plating III, Inc. specializes in government-contracted anodizing and a comprehensive suite of metal finishing services. Offerings include Teflon impregnation, diverse plating (electroless nickel, cadmium, copper, tin), black oxide, chem film, magnesium, passivation, and painting.
Elite Metal Finishing, LLC provides metal finishing services, including chemical processing, plating, painting, and non-destructive testing. Based in Oxnard, CA, the company supports industrial clients like Lockheed Martin, from prototype to production, with experienced staff and technical expertise. They continually add new processes and technologies.
Based in San Antonio, TX, Wright Metal Finishing LLC specializes in metal finishing services for commercial and industrial clients. The company provides top quality Type 2 Anodize aluminum and Type 3 Hard Anodized aluminum. Wright Metal Finishing serves nationwide companies with its anodizing solutions.
Based in Fort Wayne, IN, Fort Wayne Anodizing specializes in Type III hardcoat and Type II aluminum anodizing. With over 70 years of experience, the company also provides two-step architectural anodizing, chromate conversion, impregnation, burnishing, and polishing services for industrial clients.
Hale Performance Coatings, Inc., based in Toledo, OH, specializes in comprehensive metal finishing services. They provide Type II and Type III (Hardcoat) anodizing, electroless nickel plating, passivation, and phosphating. Serving diverse industrial sectors, the company delivers specialized coatings designed for durability, corrosion resistance, and aesthetic appeal.
Har-Conn specializes in hardcoat anodizing services for aluminum, meeting stringent aerospace and defense standards such as AMS 2488, AMS 2468, and MIL-A-8625. Based in West Hartford, CT, the company provides critical anodic coatings for demanding industrial applications, serving major clients like Northrop Grumman and UTC Aerospace Systems.
Hard Anodize, Inc., based in Edina, MN, specializes in hard anodize finishing, offering wear and corrosion-resistant Type III (MIL-PRF-8625) and Type II anodic coatings. With over 45 years of experience, they provide conversion coating and masking services, holding AS-9100, ISO-9001, and NADCAP certifications.
Har-Conn Aerospace, with facilities in Fort Worth, TX and West Hartford, CT, specializes in metal finishing for aerospace and defense. They offer a comprehensive suite of surface treatments, prominently featuring Type III (Hardcoat) anodizing, alongside sulfuric anodizing, chemical film, and various plating services.
International Hardcoat, based in Detroit, MI, specializes in hardcoat and sulfuric anodizing, along with chromate conversion coating. Their two state-of-the-art facilities serve diverse industries like automotive, aerospace, military, and medical with high-volume and custom work. The company holds ISO 9001 and NADCAP certifications for quality.
K&L Anodizing, based in Burbank, CA, provides comprehensive metal finishing services with over 75 years of experience. The company offers Nadcap and ISO 9001:2015 certified processing, catering to critical industries such as military, aerospace, medical, and commercial. They maintain strict quality control and ITAR guidelines.
Luke Engineering & Anodizing Co. Inc., based in Wadsworth, OH, specializes in anodizing and conversion coatings for aluminum. Established in 1964, they offer over fifty-five years of experience in hard coat anodizing, utilizing one of North America's largest tanks. A custom process control system ensures consistent quality and rapid order turnaround.
Master Metal Finishers, based in Paterson, NJ, provides high-precision metal finishing services. They specialize in Hardcoat Anodizing, offering clear and dyed options approved for military specifications. Capabilities include Sulfuric and Chromic acid anodizing, chromate conversion, etching, and painting, managing a complete, customized workflow.
Based in Cleveland, OH, The Electrolizing Corporation of Ohio (ECO) offers metal finishing services. They specialize in Hardcoat Anodizing (Titanium Type III) and Type II, and Electrolizing thin dense chrome. Serving demanding Medical, Military, and Aerospace industries, ECO provides validated processes with 75+ years of experience.
Mills Metal Finishing Inc., based in Columbus, OH, provides metal plating, coating, and finishing services. Their specialties include hardcoat anodizing, sulfuric acid anodizing, and various color anodizing. They also offer tin plating, electropolishing, powder coating, and corrosion resistance treatments for diverse applications.
Milner's Anodizing, a Nadcap accredited job shop in Santa Rosa, CA, provides premium anodizing and passivation. All work adheres to U.S. Aerospace and Defense standards. They serve commercial and defense clients, excelling at complex custom surfaces with in-house lab.
Omni Metal Finishing Inc., based in Fountain Valley, CA, specializes in comprehensive metal finishing services. They offer anodizing, Teflon impregnation, various plating options including electroless nickel, cadmium, copper, and tin, alongside chemical film application, magnesium finishing, passivation, and painting.
Paramount Metal Finishing Co, based in Linden, NJ, specializes in metal finishing services, offering plating, painting, powder coating, and anodizing. Their coatings provide functions like solderability, RFI shielding, abrasion resistance, corrosion protection, and aesthetic appeal for diverse products. The company holds ISO 9001:2015 certification.
Pioneer Metal Finishing offers comprehensive metal finishing solutions, including Type III hardcoat anodizing for maximum wear resistance and corrosion protection. Specializing in aluminum alloys and castings, the company also provides anti-corrosion, lubrication, and aesthetic enhancements. They process over 560 million parts annually for diverse manufacturing industries.
Based in Anaheim, CA, Precision Anodizing and Plating, Inc. is a family-owned metal finishing company with over 47 years of experience. They provide anodizing, plating, and other finishing services. Nadcap, ISO9001:2015, and AS9100D certified, they serve Military, Aerospace, Marine, Medical, Automotive, and Telecommunications industries.
Based in Woonsocket, RI, Precision Coating provides aluminum anodizing and coating application services. With over 65 years of experience, the company offers value-added surface treatments, including hardcoat anodizing, complex masking, and marking technologies. They specialize in serving the medical device industry.
Quick Turn Anodizing, LLC specializes in Type III hardcoat, Type IIB, and Type II sulfuric acid anodizing. Other services include chromate conversion, stainless steel passivation, and black oxide coating. An ITAR-registered and Raytheon-approved supplier, they serve diverse U.S. industries with a 3-day average turnaround.
Based in Akron, OH, Russell Products Co. Inc. specializes in comprehensive metal finishing services. They provide aluminum anodizing, including Type II and Type III hardcoat, electropolishing, passivation, and chemical film treatments, serving various industrial clients seeking high-quality surface finishing solutions.
Based in Nashville, TN, SAF is an experienced aluminum anodizer and fabricator, serving the architectural and building industries since 1946. They provide anodizing, painting, and custom fabrication services for architectural aluminum sheet, column covers, wall panels, and extruded shapes nationwide.
Based in Henderson, CO, S & S Anodizing provides specialized anodizing services for diverse industrial applications. The company offers surface finishing solutions, including hardcoat anodizing, catering to commercial and manufacturing customers requiring enhanced material properties and durability for their components.
Based in Richmond, VA, Specialty Finishes offers a range of industrial metal finishing services. They specialize in various coatings, including Type II and Type III hardcoat anodizing, electroless nickel plating, gold, silver, copper, tin, black oxide, passivation, zinc plating, and powder coating. The company serves B2B clients with high-quality surface finishing solutions.
Based in Clearwater, FL, Sun-Glo Machining and Metal Finishing provides hardcoat anodizing (Type III) services for aluminum components needing wear and tear resistance. They offer a comprehensive suite of metal finishing solutions, including Type I and Type II anodizing, CNC machining, conversion coatings, electroplating, and powder coating.
Based in Houston, TX, Surface Techniques specializes in metal finishing services, including anodizing and precious metal plating. They finish various sizes and types of metal products for industries such as packaging, food manufacturing, industrial fabrication, oil and gas, and offshore/subsea. The company has provided metal finishing since 1976.
Based in Dayton, OH, Techmetals offers aluminum hardcoat anodizing (Type III) services. With over 50 years of experience, the company adheres to MIL A 8625 and AMS 2482 (Type I) specifications. They also provide custom plating solutions and research and development for diverse project requirements.
Based in Minneapolis, MN, The Lindgren Group specializes in Type III hardcoat anodizing. They offer processes compliant with MIL-A-8625, providing superior abrasion resistance, corrosion protection, and thermal properties for various applications.
Based in Huntington Beach, CA, Tiodize specializes in advanced coatings for friction, wear, and corrosion prevention. They offer aluminum anodizing, including treatments that provide hard, lubricious, and corrosion-resistant aluminum oxide coatings for various alloys. Additional services encompass titanium anodizing, dry film lubricants, and emissivity coatings.
Based in East Greenville, PA, Titanium Finishing Company specializes in metal coating systems, providing titanium and hardcoat anodizing for aluminum. They offer eco-friendly titanium anodizing processes and a proprietary hardcoat method to prevent burning and improve aluminum properties. TFC serves military, aerospace, and medical communities.
Based in Brooklyn, NY, Tru-Tone Metal Products, Inc. specializes in aluminum anodizing and painting for military and commercial specifications. They offer a complete line of anodizing services, including hardcoat, chromic acid, and sulfuric acid anodize. Other processes include iridite, etch, passivation, and painting.
TT Anodizing specializes in providing direct titanium anodizing services, meticulously adhering to the AMS-2488 Type II coating specification. This company offers industrial anodizing solutions, ensuring precise surface finishing for various B2B applications. It operates from Monday to Friday, serving clients with specialized coating needs in the United States.
Based in Tucson, AZ, Precision Finishing, Inc. provides Type II and Type III (Hardcoat) aluminum anodizing services. They offer substantial tank capacity, an extensive color selection, chromate conversion coating to MIL-DTL-5541F spec, and bright dip anodizing, known for efficient turnaround times.
Based in Houston, TX, Turn-Key Coatings is an ISO 9001:2015 registered metal plating and finishing company established in 1984. They offer a wide array of plating processes for demanding industries including aerospace, defense, and medical. Capabilities also include custom masking, polishing, and assembly.
Based in Gaffney, SC, Upstate Anodize LLC provides high quality hardcoat anodizing, alongside clear and dyed anodize services. The company emphasizes quick response and swift standard delivery, aiming to exceed customer expectations for aluminum finishing projects.
Based in Reading, PA, US Anodize is a 3rd generation family-owned company specializing in custom aluminum anodizing. They offer enhanced corrosion protection, wear resistance, and dyeing capabilities for parts. The company also provides PERMODIZE® for aesthetics, chromate conversion, and laser engraving, focusing on high-volume production with quality service.
U.S. Anodizing provides aluminum and metal finishing services, specializing in applications for the firearms industry. The company exclusively serves B2B clients, including manufacturers and law enforcement agencies, offering critical surface treatments for various components.
Valence Surface Technologies offers comprehensive aerospace product finishing solutions, including chemical processing for aluminum, steel, titanium, and nickel-based alloys. Their services encompass NDT, shot peen, plating, and painting for commercial, business, space, medical, and defense sectors. They operate facilities in the United States.
Waco Metal Finishing, located in Waco, TX, offers precise aluminum anodizing, stainless steel passivation, and comprehensive metal finishing services. They specialize in Type 3 hardcoat anodizing, including clear and dyed options, and Type 2 anodizing. All processes adhere to MIL-SPEC 8625 standards, with capabilities for parts up to 96 inches.
W/S Finishing Corporation, based in Dallas, TX, specializes in metal finishing services. They offer sulfuric acid anodizing for aluminum, producing abrasion-resistant coatings up to 1 mil thick. Capabilities include two-step color anodizing for bronze and black finishes, utilizing large tanks for diverse project needs.
Aalberts Surface Technologies provides advanced surface treatments, including patented NUCOCOMP® hard-anodized aluminum oxide-polymer composite coatings. They offer services like heat treatment, polymer coating, and reel-to-reel surface treatment, improving material properties for hardness, wear, and corrosion resistance. Serving diverse industrial applications, the company operates multiple facilities across the United States.
Based in Wood Village, OR, Advanced Precision Anodizing is a family-owned provider of Type III (Hard) and Type II (Soft) anodizing services. They additionally offer laser marking and media blasting. With an FFL license, the company serves commercial and industrial clients, focusing on quality and customer satisfaction.
Paterson, NJ-based TRB-ANDARN specializes in metal finishing and anodizing, leveraging over 50 years of industry experience. An AS 9100 D/ISO 9001 – 2015 certified provider, they offer comprehensive electro plating, black oxide, chemical conversion, and passivation. They efficiently handle small and large volume customized jobs.
Based in Compton, CA, AAA Plating & Inspection, Inc. specializes in comprehensive metal finishing services. They offer five types of anodize, cadmium plating, passivation, paint services, and Ion Vapor Deposition (IVD) of aluminum. The company is recognized for its dedication to quality, consistency, and sustainability, serving various industrial clients.
Based in Compton, CA, Accurate Anodizing specializes in comprehensive metal finishing services. They provide Hardcoat Anodizing (Type III), Type II Anodizing, chromate conversion, and passivation. The company serves diverse industrial sectors, including aerospace, automotive, medical, electronics, and commercial markets with their specialized finishing capabilities.
Allen Aircraft Products, Inc. in Ravenna, OH, provides metal finishing services such as anodizing, phosphating, and dryfilm lubricant. With over 75 years of experience, they also manufacture fluid system components and offer verification testing. The company supports commercial, military, and general aviation aircraft markets.
Advanced Metal Finishing, based in Roseville, CA, provides precision metal finishing services for aerospace, defense, and medical industries. Specializing in high-spec, mission-critical applications, they ensure parts meet tight tolerances. The company utilizes NADCAP-ready processes and offers in-house QA with certified testing for reliable performance.
Anocote Metal Finishing Inc. specializes in hardcoat (Type III), clear, and color anodizing, along with chromate conversion and passivation services. Based in San Diego, CA, they serve diverse industries including aerospace, medical, defense, and commercial with precision metal finishing.
Based in Syracuse, NY, Anoplate Corporation provides industrial metal finishing services, specializing in hardcoat anodizing. Their hardcoat anodize process enhances components with increased abrasion wear, corrosion resistance, dielectric properties, and improved lubrication for various industrial applications.
AOTCO Metal Finishing, based in Billerica, MA, provides comprehensive surface finishing solutions, specializing in Type III hardcoat anodizing (AMS 2482), sulfuric, and chromic anodizing, alongside conversion coatings. They serve critical applications in aerospace, medical, defense, industrial, and commercial sectors.
Based in Chicago, IL, Automatic Anodizing has specialized in aluminum finishing since 1947. The company provides Type II and Type III Hard Coat Anodizing services, alongside chemical/chromate conversion coating. Automatic Anodizing holds ISO 9001:2015 certification, ensuring quality for diverse client needs.
Based in Redwood City, CA, Dean's Anodizing offers comprehensive metal finishing services for aluminum components. They specialize in Hardcoat (Type III), Sulphuric, and Chromic Anodizing, alongside Anolok finishes, passivation, and chem film. The company serves diverse industrial sectors, including medical, electronic, and aerospace.
Elite Metal Finishing Inc. is a Southern California-based metal finishing company specializing in a wide range of surface treatments. They provide Type III Hardcoat Anodizing per MIL-A-8625, along with Type II sulfuric anodizing, chromate conversion coating, passivation, electropolishing, and other finishing services. They serve various industrial applications.
Finishing Professionals is a NADCAP certified metal finisher based in Denver, CO. The company provides quality finishing services to local fabricators, machine shops, and OEMs, particularly within the aerospace, medical, and general metal manufacturing industries. They focus on superior quality and on-time delivery for B2B customers.
Based in Providence, RI, Greystone specializes in precision, high-volume Type II and Type III aluminum hardcoat anodizing services. As a machining and plating partner, the company provides electroplating and other finishing processes with superior adhesion for automotive and industrial parts from its US facilities.
Houston Anodizing, based in Houston, TX, provides Type III (Hardcoat) and Type II aluminum anodizing services in clear and colored finishes. The company is ISO 9001:2015 registered and NADCAP compliant, serving diverse industries including automotive, medical, military, aerospace, and firearms.
Based in Sacramento, CA, Metal Finishing Group offers a comprehensive suite of metal finishing processes. With large-scale operations and tank sizes up to 12 ft long, they handle diverse part dimensions and critical applications. The company provides high-quality solutions for various leading sectors.
Metal Finishing Solutions, Inc. provides quick-turn metal finishing, plating, and assembly services from multiple US locations, including Santa Clara, CA. Operating fully automated production lines, they offer diverse processes such as anodizing, alodine, E-coat, electroless nickel, and TiZr conversion coatings for various industries.
Miramar Metal Processing, based in San Diego, CA, is a metal finishing job shop. They specialize in Hardcoat Anodizing (Type III), alongside chemical conversion coatings, passivation, and various plating services. Serving aerospace, medical, and industrial industries, they provide high-quality surface treatments for critical components.
Based in Spokane, WA, Novation Inc. is a Nadcap certified metal finishing company. They specialize in metal surface treatments, including RoHS compliant Type III hardcoat anodizing. Known for fast turnaround times and consistent quality, Novation Inc. prepares components with precision for diverse industrial uses.
Ohio Anodizing Inc., based in Columbus, OH, offers direct hardcoat anodizing (Type III) and sulfuric anodizing (Type II) services. The company also provides chemical conversion coating, passivation of stainless steel, and electropolishing. They serve industrial clients with comprehensive metal finishing solutions for diverse manufacturing applications.
Based in Grand Junction, CO, Precision Metal Finishing LLC provides comprehensive metal finishing services. They specialize in Hard Coat Anodize Type III for heavy wear and corrosive industrial applications, alongside Type II anodizing, black oxide, chem film, and zinc plating.
Quality One Anodizing provides hardcoat anodizing services, specializing in precision anodizing processes. The company is actively rebuilding its facility after a recent fire, currently operating from its original location to continue serving customers across various industrial applications.
Texas Precision Plating, Inc. is a family-owned metal finishing company located in Garland, TX, operating since 1966. They provide extensive plating services, including hardcoat (Type III), chromic, and sulfuric anodizing. The company serves commercial, automotive, electronics, aerospace, military, and government sectors.
Based in Fresno, CA, Valley Metal Finishing, Inc. specializes in aluminum anodizing solutions. With over 45 years of experience, the company delivers consistent and reliable results for various requirements. They offer a typical turnaround time of 48-72 hours, with an expedited 24-hour service available.
Del's Plating Works, a Houston, TX-based company, has offered high-volume metal finishing services nationwide since 1969. Their capabilities include anodizing, black oxide, cadmium, zinc, and zinc nickel plating. Operating on a 24-hour production schedule, they deliver quality finishes and fast turnaround times.
Houston Plating & Coatings, LLC provides comprehensive metal finishing services, including Type III hardcoat anodizing and Type II sulfuric anodizing. They also offer a wide range of electroplating options, powder coating, liquid painting, electroless nickel, passivation, and thermal spray coatings for industrial applications.
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How to Choose a Company
- For aerospace, defense, or critical medical applications, ensure the supplier holds Nadcap accreditation for Chemical Processing and can demonstrate strict adherence to MIL-A-8625 Type III, Class 1 or 2, with specific validation for your chosen sealing method.
- Verify their ability to consistently achieve the specified film thickness (e.g., 50 microns +/- 5) on your specific aluminum alloy (e.g., 6061-T6 vs. 7075-T6), and inquire about their process control methods for maintaining uniformity across complex geometries, which can be critical for wear distribution.
- Ask about their in-house testing capabilities for critical performance metrics like dielectric strength, abrasion resistance (e.g., using Taber Abraser tests), and hardness (e.g., micro-Vickers), and confirm their reporting capabilities for these results if they are key to your application.
- Beware of suppliers who quote without asking about critical unanodized areas, racking points, or tolerance stack-up; improper masking or poorly planned racking can lead to rework, cosmetic defects, or compromised functionality where electrical contact or precise mating is required.
- Discuss anticipated dimensional growth due to the anodic film thickness and confirm their understanding of your post-anodize tolerance requirements, especially for precision components where even a few microns can cause interference issues or render parts out of specification.
Frequently Asked Questions
What's the impact of aluminum alloy selection on hardcoat anodizing quality?
Aluminum alloy selection significantly influences hardcoat anodizing outcomes. Alloys like 6061 and 7075 are generally excellent for hardcoat, yielding dense, uniform films. However, alloys with high silicon content (e.g., some cast alloys) can result in browner, softer films, while high copper content (e.g., 2024) can lead to a less uniform, more porous coating and reduced wear resistance. Always specify your exact alloy; a good anodizer will tailor their process parameters accordingly.
How does sealing affect the performance of Type III hardcoat anodize?
Sealing is a post-anodizing treatment that closes the pores of the anodic film, critically impacting properties like corrosion resistance and, to a lesser extent, hardness. Hot water (hydrothermal) sealing provides good corrosion resistance but can slightly reduce the film's hardness. Dichromate sealing offers superior corrosion protection, particularly in harsh environments, but contains hexavalent chromium. Unsealed hardcoat provides maximum hardness but minimal corrosion resistance. The choice hinges on your application's specific performance requirements.
Are racking marks inevitable with hardcoat anodizing, and how should I plan for them?
Yes, racking marks are largely inevitable in hardcoat anodizing as parts require electrical contact points during the process. These appear as small, unanodized areas where the part was clamped. The key is proactive planning. Work with your anodizer to identify non-critical surfaces where these marks can be placed without affecting cosmetic appearance or functional integrity, ensuring they won't interfere with mating parts, electrical connections, or sealed areas.
How important is specifying the exact film thickness (in microns) for hardcoat anodizing?
Specifying the exact film thickness in microns (or mils) is critically important for hardcoat anodizing. The film thickness directly dictates the part's abrasion resistance, dielectric strength, and dimensional change. Under-specifying can lead to premature wear or electrical failure, while over-specifying can cause the film to crack under stress or result in parts exceeding critical dimensional tolerances. Always provide a precise target range (e.g., 50-75 microns or 2.0-3.0 mils) to the anodizer.