Chrome-Free Epoxy Primer

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Premium Chrome-Free Epoxy Primer for Superior Corrosion Protection

Protect your aircraft with industry-leading Chrome-Free Epoxy Primer solutions from SkyGeek. Designed specifically for modern aerospace and industrial applications, our chrome-free primers deliver robust corrosion resistance without the health hazards associated with traditional chromate-based products. Ensure compliance with evolving environmental standards while maintaining maximum durability and performance on all types of metal surfaces.

Benefits of Chrome-Free Epoxy Primers

SkyGeek’s selection of chrome-free epoxy primers offers outstanding adhesion, chemical resistance, and compatibility with a wide range of topcoats. These advanced primers are formulated to meet strict OEM and FAA requirements, making them a trusted choice for both commercial and military aircraft maintenance. With fast drying times and easy application, you can achieve optimal surface preparation and long-term protection in even the most demanding conditions.

Enhance Your Application Process

For a flawless finish, pair your chrome-free epoxy primer with high-quality abrasive discs during surface prep. Need additional supplies? Explore our full selection of hangar supplies or find advanced aerospace sealants for complete protection. Trust SkyGeek to supply everything you need for safe and effective aircraft maintenance.

Chrome-Free Epoxy Primer FAQs

Q: What is chrome-free epoxy primer and why is it used in aviation?
A: Chrome-free epoxy primer provides corrosion protection for aircraft metal surfaces without hexavalent chromium compounds. It meets the same performance requirements as traditional chromated epoxy primer while complying with environmental and occupational health regulations. Chrome-free systems meeting MIL-PRF-23377 Class C are widely accepted across commercial and military MRO programs.
Q: What specification does chrome-free epoxy primer meet?
A: Chrome-free epoxy primers are formulated to meet MIL-PRF-23377 Class C (chrome-free) and in some cases MIL-PRF-85582 for waterborne formulations. These specifications define corrosion resistance, adhesion, flexibility, and chemical resistance requirements. The applicable specification for each aircraft application is defined in the maintenance manual or repair specification.

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Q: Is chrome-free primer as effective as chromated primer for aircraft corrosion protection?
A: Modern chrome-free epoxy primers have been engineered to meet the same corrosion protection specifications as chromated primers and are approved by major aircraft manufacturers and military programs. In properly prepared and topcoated systems, chrome-free primers provide comparable corrosion protection based on salt spray and field performance data.
Q: What surface preparation is needed before applying chrome-free epoxy primer?
A: Surfaces must be degreased, mechanically or chemically prepared (scuff sanding or conversion coating), and free of contamination immediately before application. Chrome-free conversion coatings meeting MIL-DTL-81706 Type II are compatible with chrome-free primer systems and provide the recommended adhesion base for aluminum substrates.

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Q: What topcoat systems are compatible with chrome-free epoxy primer?
A: Chrome-free epoxy primers are compatible with polyurethane, fluoropolyurethane, and other aerospace topcoat systems. The primer and topcoat must be from a qualified coating system approved by the aircraft manufacturer or specified in the repair manual. Always verify inter-coat compatibility using the primer and topcoat manufacturer's product guides.

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Q: Can chrome-free primer be used on all aircraft metal substrates?
A: Chrome-free epoxy primers are approved for use on aluminum alloys and can also be used on steel and magnesium with appropriate surface preparation. Always verify the substrate compatibility listed in the primer's technical data sheet and confirm the application is approved in the aircraft maintenance or repair documentation.

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