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Last updated: January 2026
This directory lists 59 conformal coating companies across the United States, from specialized contract coaters offering only spray and dip services to full-spectrum electronics manufacturing service (EMS) providers with integrated coating lines.
Buyers seek solutions for environmental protection against moisture, chemicals, and particulate matter, often driven by strict reliability requirements in harsh environments. They need to mitigate risks of dendrite growth, short circuits, and corrosion. Key challenges include achieving uniform film thickness over complex geometries and ensuring robust adhesion to diverse substrates, especially when confronting evolving solder paste chemistries and their residues.
Suppliers range from dedicated conformal coating houses focusing exclusively on protective encapsulation, often serving multiple industries, to larger EMS firms that integrate coating as part of a complete box-build or PCBA assembly service. The former offers deep expertise in materials and application techniques, while the latter provides convenience and single-vendor accountability for a broader scope of work. Some even specialize purely in niche areas like Parylene deposition.
59 companies nationwide
Advanced Coating provides state-of-the-art parylene coating solutions and precision coatings. With decades of experience, the company addresses critical needs across various high-reliability applications. They specialize in advanced coating technologies for the aerospace, medical, and defense industries, ensuring effective solutions.
Based in Stockton, CA, Advanced Industrial Coatings provides high-performance industrial coating services for US industrial, scientific, and medical manufacturers. They apply high-quality coatings to reduce costs, optimize supply chains, and improve product conformance and quality. The company serves B2B clients across the United States from its California facility.
Based in San Diego, CA, Alphacoat Finishing provides precision conformal coating services for critical electronics. The company specializes in applying protective layers, offering potting and encapsulation, rework, de-coating, and comprehensive inspection and testing to ensure electronic reliability.
Based in Brenham, TX, BENCOR LLC is an ISO 9001:2015 certified electronics contract manufacturer. The company provides a comprehensive range of electronics contract manufacturing services, serving clients across Texas and the United States. Its capabilities include various processes essential for electronic assemblies, often encompassing conformal coating for component protection.
Based in Horsham, PA, Biocoat Incorporated specializes in providing advanced lubricious hydrophilic coatings and comprehensive coating services. The company develops and applies coatings primarily for various medical devices, enhancing performance and biocompatibility for industrial clients.
Based in Carson, CA, ACME PCB Assembly is an ISO 9001:2015 certified electronic contract manufacturer. They operate a 16,000 sq ft facility, offering PCB assembly, consignment, and turnkey solutions. With over 30 years of experience, ACME provides conformal coating and encapsulating services for diverse electronic projects.
Cascade Systems, an electronic contract manufacturer based in Hillsboro, OR, specializes in Electronic Manufacturing Services (EMS). They provide comprehensive manufacturing solutions including conformal coating, surface mount, microelectronics, and box build assembly. The company supports industries like aerospace, medical devices, semiconductor, and clean energy.
Chemtronics provides Konform® Conformal Coatings, engineered to protect printed circuit boards, components, and flex circuitry. Applied via spray, dip tank, or brush, these coatings safeguard sensitive electronics from damage and environmental contaminants, offering solutions for diverse industrial and commercial applications.
Based in Tallmadge, OH, CLS Finishing offers industrial coating services with aerospace-level expertise since 1990. They provide solutions including powder coating, electromagnetic shielding, corrosion protection, conductive finishes, and high-performance liquid coatings. The company's patented technologies deliver durable protection for diverse industrial applications.
Based in Harrison, OH, Coating Systems, Inc. specializes in applying functional coatings for industrial applications. They offer custom coating application and dip-spin processing services, helping clients enhance product lifecycles, increase productivity, and reduce machinery downtime.
Based in Los Angeles, CA, Electronic Polymer Technologies offers NASA-grade conformal coating services for electronic circuit boards and critical components. With over 20 years of experience, they specialize in protecting devices from harsh environments, ensuring longevity and reliability. The company provides expert guidance and reliable service.
Based in Austinburg, OH, SurfTech Inc. specializes in advanced surface technologies, offering comprehensive conformal coating services for sensitive electronic components. They apply materials like Acrylic, Silicone, Urethane, and Parylene, adhering to industry standards such as IPC-CC-830 and MIL-I-46058C. SurfTech serves medical, automotive, aerospace, and electronics industries.
Based in Lancaster, PA, ETEMCO offers conformal coating and RTV dispensing services for Printed Circuit Board (PCB) protection. They enhance durability, resist moisture, and ensure the reliability of electronic components in demanding environments. ETEMCO supports various industries needing robust protection for sensitive electronics.
Based in West Jefferson, NC, Global Manufacturing Services, Inc. provides comprehensive electronic manufacturing services. They specialize in precision automated and manual conformal coating, protecting electronic assemblies from moisture, dust, and temperature extremes. Services include SMT, Through-Hole, box build, and LED PCB assembly, backed by ISO 9001:2015 and RoHS compliance.
Based in Houston, TX, IA Coatings is a Veteran-Owned Small Business specializing in high-performance and protective coating applications. They deliver advanced coating solutions, including their proprietary Blackstone™ Graphene-enhanced system, for aerospace, defense, industrial, automotive, and electronic warfare sectors, ensuring enhanced corrosion protection and material fortification. They are ITAR and CMMC 2.0 Level 1 compliant.
Based in Ipswich, MA, Jaro Corp specializes in the application of functional coatings for aerospace, defense, medical, and commercial industries. The company provides conformal coatings to protect printed circuit boards, alongside conductive and dielectric coating solutions.
Based in Milpitas, CA, Meritronics provides comprehensive Electronic Manufacturing Services (EMS), including PCB assembly and box build. The company offers advanced conformal coating solutions to protect printed circuit board assemblies from harsh environments. They utilize automated systems and various coating types, such as acrylic, polyurethane, and silicone.
Miller-Stephenson, based in Danbury, CT, manufactures innovative chemical solutions. They supply ShieldSys™ 470X Polyurethane Conformal Coating, qualified to MIL-I-46058C Type UR, and silicone conformal coatings known for excellent moisture, fungal, and temperature resistance. This company has provided solutions since 1955.
Mitchell Industries offers industrial blasting and coating services, specializing in the application of standard and specialty coatings, metallizing, and powder coating for corrosion protection. Based in Baytown, TX, the company serves diverse industries through its dedicated coating division and provides solutions for various industrial applications.
NPI Services Inc. is an electronics manufacturing services (EMS) provider based in Costa Mesa, CA. Specializing in New Product Introduction (NPI) and low-to-mid volume production, they offer comprehensive services including PCB assembly, box build, testing, and conformal coating & potting for various industries.
PARPRO Technologies, Inc. is a USMCA-compliant electronics manufacturing services provider based in Santa Ana, CA. The company specializes in complex electronics, offering PCB assembly, SMT, box build, custom cable, and electro-mechanical assemblies. They serve critical industries including aerospace & defense, industrial, medical, and communications.
Parylene Engineering offers parylene conformal coating and consultation services, applying thin film coatings via vapor deposition. These coatings provide essential electrical insulation, moisture barriers, and corrosion protection for complex shapes. The company serves the aerospace, automotive, medical, and electronics industries, enhancing the durability of leading-edge technologies.
PCB Trace Technologies Inc., based in Milpitas, CA, offers comprehensive electronics manufacturing services. They specialize in PCB prototyping, fabrication, assembly, and testing, serving diverse industries. Their value-added services include conformal coating with acrylic, urethane, and silicone, alongside potting, encapsulation, and full box build assembly.
Para-Coat Technologies (PCT), based in Johnstown, PA, provides specialized conformal coating services for electronic components. The company applies Parylene, Polyurethane, Epoxy, Silicone, and Acrylic coatings to ensure optimal protection. PCT is an ISO 9001:2015, ISO 13485:2016, and ITAR-certified manufacturer service provider.
PF Technologies, based in Phoenix, AZ, specializes in robotically applied coatings, including decorative finishes and EMI/RFI shielding. They provide custom coating solutions for plastic, metal, and glass components. Serving electronics, automotive, aerospace, and medical device industries, the company ensures consistent, quality coating applications since 1981.
Plasma Ruggedized Solutions (PRS), based in San Jose, CA, specializes in parylene coating and plasma technologies. They provide ruggedized coatings, holding NADCAP, AS9100, and NASA certifications for aerospace, defense, and medical sectors.
Based in Woonsocket, RI, Precision Coating provides extensive coating application services, including complex masking and various value-added surface treatments. With over 65 years of experience, the company offers marking technologies and specializes in serving the medical device industry, helping achieve product engineering and performance.
Based in Waterbury, CT, Precision Dip Coating specializes in professional dielectric coating services. The company applies protective coatings designed to enhance the performance and longevity of electrical and electronic components, serving various industrial and commercial applications.
Based in Lake Mary, FL, Quality Manufacturing Services (QMS) is a full-service electronics manufacturing services provider. They offer conformal coating services to protect sensitive electronics from environmental factors like moisture, dust, and salt. QMS also provides PCB assembly and prototyping.
Based in Minneapolis, MN, Quantronic specializes in providing high-quality conformal coating services. The company utilizes a state-of-the-art PVA (Precision Valve Automation) Selective Coating/Dispensing System to deliver precise and reliable coating applications for various electronic components and assemblies.
Based in Grand Prairie, TX, REYcomp provides comprehensive electronic manufacturing services, including SMT/TH PCB assembly and box builds. Specializing in robust assemblies for harsh environments, they offer direct special coating services for protection, adhering to IPC-A-610 standards. The company also supports prototyping and PCB repair.
Based in Chino, CA, Sierra Assembly Technology LLC offers customized PCB conformal coating and assembly services. With over 30 years of experience, they provide quick-turn prototyping and full production using SMT and Thru-hole lines. They cater to defense, healthcare, government, and entertainment industries.
SoPark Corporation, based in Buffalo, NY, is an ISO, ITAR, and AS certified contract manufacturer. The company offers comprehensive electronic manufacturing services, including selective conformal coating, board assembly, box build assembly, and cable assemblies, serving industries with stringent quality and compliance requirements.
Based in Ladson, SC, SpecCoat specializes in conformal coating services for electronic components. They employ advanced automated application techniques using materials like acrylic, silicone, urethane, and parylene. Capabilities include masking, UV inspection, rework, and potting, ensuring robust safeguarding for critical systems.
Based in Austin, TX, TRI Austin specializes in advanced materials research and development. Their Materials Division formulates and synthesizes high-performance protective polymer coatings for demanding environments. TRI Austin provides these custom solutions and engineering services for the DoD, NASA, and other government and commercial clients.
Based in Houston, TX, Trylene Inc. is an electronic manufacturing service provider. The company offers a range of services including through-hole to SMT conversion, high-mix and low-medium volume production, and engineering support. Trylene specializes in conformal coating and epoxy application for electronic assemblies.
Based in Austin, TX, VIRTEX is an Electronic Contract Manufacturer (EMS) offering comprehensive circuit card assembly services. The company provides strategic manufacturing solutions with in-house conformal coating capabilities, ensuring high reliability and regulatory compliance for demanding applications across military, aerospace, medical, and industrial sectors.
Based in Broomfield, CO, VSi Parylene Coatings provides Parylene conformal coating services, equipment, and dimers for diverse industries. They specialize in medical devices, waterproof electronics, and aerospace applications, offering coating as a service. The company operates under strict ISO 13485:2016 and ISO 9001:2015 quality management systems.
Based in Morrisville, NC, HZO provides scalable, cost-effective Parylene and thin film conformal coating services. They offer turnkey solutions designed to prevent premature electronic component failure due to environmental hazards. Their coatings are hydrophobic, corrosion-resistant, and dielectric, serving diverse markets including automotive, IoT, medical, consumer electronics, and batteries.
Based in San Jose, CA, Proto Services Inc. provides comprehensive manufacturing services from prototype builds to full-scale production. Established in 1998, the company operates a dedicated conformal coating facility. They emphasize quick-turn delivery for diverse industries including aerospace, medical, and consumer electronics.
AI Technology, Inc., based in Princeton Junction, NJ, provides advanced conformal coatings proven for protecting automotive, aerospace, military, marine, and solar electronics. The company also offers a diverse portfolio of specialty adhesives, thermal interface materials, dicing tapes, and EMI/RFI shielding solutions.
AlphaEMS, based in Fremont, CA, provides comprehensive electronics manufacturing services. Their offerings include PCBA assembly, box build, and testing, with a key specialization in conformal coating and potting. They serve industries demanding high-reliability, such as medical, industrial, telecom, and defense.
Based in West Boylston, MA, Central Coating Company, Inc. provides custom coating solutions, specializing in conformal coatings such as Acrylic, Urethane, Silicone, Epoxy, and Parylene. The AS9100/ISO9001:2015 certified company uses spray and selective dip applications, also offering EMI shielding, potting, and encapsulation services.
Electronic Coating Technologies provides contract conformal coating services for a wide range of applications. With over two decades of experience, the company supports markets across both the United States and Canada.
Based in Houston, TX, Endura Coatings has provided engineered coating solutions since 1970, with over 750 proprietary options across 11 technology platforms. They offer bio-approved coating solutions for medical devices, instruments, tooling, and manufactured products. Their coatings form integral bonds with base metal substrates, preventing chipping, cracking, flaking, or peeling.
Based in Arroyo Grande, CA, K&J Coating Technologies Inc. provides specialized anti-corrosive coating services. They apply Infiniguard clear ceramic coatings to HVAC equipment, enhancing efficiency and extending unit life. The company also offers electrical component protection, safeguarding logic boards and controls against corrosion for industrial applications.
Master Bond formulates and manufactures a wide range of advanced adhesives, sealants, and coatings, including various conformal coatings. They specialize in UV curing, epoxy, and silicone formulations. Products are freshly made-to-order from their USA manufacturing facility, offering personalized technical support, custom formulation development, and compliance with industrial certifications.
PPG provides high-performance aerospace coatings that enhance durability and offer environmental protection for military aircraft. These advanced coatings are designed to be applied to various components, ensuring long-lasting performance and resilience in demanding conditions for industrial customers.
ProCoat specializes in conformal coating, epoxy, and potting services for electronic components and assemblies. Based in San Marcos, CA, their state-of-the-art facility ensures precise applications, protecting against moisture and damage. They serve critical sectors such as military, medical, aerospace, and marine environments.
Specialty Coating Systems (SCS) provides comprehensive conformal coating solutions, specializing in Parylene, liquid, plasma polymerized, ALD, and multilayer technologies. The company offers coating services for advanced applications, adhering to stringent certifications like AS/EN 9100, ISO 9001, U.S. FDA, Nadcap, and IPC-CC-830.
Siemens Manufacturing provides expert conformal coating services to protect electronics. As an Electronic Manufacturing Services (EMS) provider, they offer capabilities including assembly, testing, and box build. Serving automotive and industrial markets, they operate US manufacturing plants.
Based in Cuyahoga Falls, OH, Silicone Solutions manufactures high-performance silicone adhesives, sealants, gels, and coatings. The company specializes in custom-formulated silicone conformal coatings for electronic applications, including printed circuit board (PCB) protection. They provide tailored solutions and consulting to meet diverse customer requirements.
Based in Huntington Beach, CA, Specialized Coating Services provides specialized conformal coating, Parylene coating, potting, and encapsulation services for printed circuit boards and electronic components. They offer comprehensive solutions, including surface preparation and rework, ensuring protection and reliability for critical assemblies across various industries.
Curtiss-Wright Surface Technologies provides automated spray-on conformal coating services. They specialize in applying liquid acrylic and urethane materials, leveraging modern equipment for precise and efficient application.
BBM Inc. specializes in providing conformal coating services, emphasizing quality in its operations. Located in McKinney, TX, the company operates from its facility on Redbud Boulevard, serving commercial and industrial clients. It offers direct contact through a toll-free number and shares updates via its news section.
Based in La Habra, CA, CCRCO specializes in comprehensive PCB rework, repair, and modification services. The company offers conformal coating removal, reapplication, and repair, alongside component replacement, surface mount, and BGA rework, providing specialized solutions for electronic assemblies.
Headquartered in Westwood, MA, Chase Corporation manufactures advanced protective materials, including a wide array of conformal coatings, encapsulants, and potting compounds for high-reliability applications. Through their HumiSeal brand, they provide leading solutions in silicones, polyurethanes, acrylics, and epoxies for industries like automotive, medical, and telecommunications.
Based in Louisville, KY, Win2uit offers precision conformal coating services to safeguard Printed Circuit Boards (PCBs). They provide coatings that ensure robust moisture and chemical resistance, protecting electronic components for various industrial and commercial applications.
Based in Huntington Beach, CA, Vinatronic specializes in electronics manufacturing services, including comprehensive conformal coating. They apply acrylic and silicone materials via spraying or dipping, adhering to IPC-CC-830 and J-STD-001 standards. Their dedicated team provides quality protection for various electronic assemblies.
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No-clean flux residues, while simplifying assembly, can significantly compromise conformal coating adhesion and electrical performance if not properly managed. Buyers should look for suppliers who perform incoming PCB surface energy testing, understand various flux chemistries, and have established processes (like plasma treatment or specific primer applications) to ensure robust coating adhesion even with residual no-clean fluxes, preventing issues like creeping or delamination.
Masking precision is paramount, especially for high-density boards. The most critical consideration is the supplier's ability to consistently apply and remove masking materials without residue or damage, accurately protecting connectors, test points, and heat-generating components. Ask about their masking methods (e.g., liquid latex, tape, custom boots) and their inspection processes to ensure no unwanted coating bleed-through or pinholes occur in critical areas.
IPC-CC-830 is the current industry standard for qualifying conformal coating materials, focusing on various material classes (e.g., acrylic, silicone, polyurethane) and their performance properties. MIL-I-46058C is an older, now inactive military specification, but it's still referenced in some legacy aerospace or defense contracts. For new designs, prioritize suppliers offering IPC-CC-830 qualified materials, as it reflects more current testing methodologies and performance requirements. If your project mandates MIL-I-46058C, ensure the supplier can provide materials explicitly meeting those legacy requirements, often through grandfathered certifications or equivalent performance data.
Uneven coating thickness, ranging from too thin in recessed areas to excessively thick on component tops, is a common issue that can lead to inadequate protection or stress on components. Be wary of suppliers who don't offer clear specifications or inspection methods for film thickness (e.g., micron range). For complex geometries with varying component heights and intricate traces, inquire about their use of automated selective coating equipment with precise dispensing capabilities and their in-process inspection using UV tracers to ensure consistent, uniform coverage and avoid issues like orange peel or bridging.