Intrepid Coatings MIL-PRF-23377JTY1CLN (2-USgl-Kit)

MIL-PRF-23377J Type I Class N Epoxy Polyamide Primer (200Y46)

Overview

MIL-PRF-23377J Type I Class N Epoxy Polyamide Primer is a two-component, high-build, low VOC, non-chromate epoxy primer formulated for aerospace and industrial corrosion protection. Designed for spray or brush application, it provides excellent adhesion and chemical resistance while serving as a durable primer beneath aliphatic polyurethane topcoats. The primer is suitable for both interior and exterior surfaces and meets stringent aerospace performance requirements while complying with low VOC regulations.

Key Technical Specs

• Product Type: Two-component epoxy polyamide primer
• Product Code: 200Y46
• Finish: High-build corrosion-inhibitive primer
• VOC Content: Maximum 340 g/L (2.8 lbs/gal)
• Mix Ratio: 1:1 by volume
• Pot Life: Approximately 4 hours
• Tack-Free Time: Within 5 hours
• Dry Hard Time: Within 8 hours
• Recommended Dry Film Thickness: 0.6-0.9 mils
• Viscosity: Maximum 40 seconds (#4 Ford Cup)
• Shelf Life: 12 months from date of manufacture
• Available Colours: Type I Yellow, Type II Dark Green or Grey

Approvals & Specifications

• MIL-PRF-23377J Type I Class N
• Low VOC aerospace epoxy primer
• Non-chromate corrosion-inhibitive formulation

Typical Applications

• Corrosion protection of aerospace structures and components
• Primer for aluminium, steel and other aircraft substrates
• Base coat beneath aliphatic polyurethane topcoats
• Interior and exterior aircraft surfaces
• Maintenance, repair and overhaul (MRO) coating applications
• OEM aerospace manufacturing
• Industrial equipment requiring chemical and solvent resistance

Key Features & Benefits

• Excellent corrosion protection without chromate pigments
• Low VOC formulation helps meet environmental regulations
• High-build coating reduces the number of application coats required
• Excellent adhesion to properly prepared substrates
• Provides outstanding resistance to solvents and chemicals
• Compatible with aerospace polyurethane topcoat systems
• Suitable for spray and limited brush application
• Packaged as a convenient two-gallon kit with a simple 1:1 mix ratio

Application Guidelines

• Mix each component thoroughly before combining.
• Slowly add Component B into Component A while continuously stirring.
• Mix at a 1:1 ratio by volume.
• Allow the mixed primer to induct for 30-45 minutes before application.
• Thin with MIL-T-81772B Type II thinner when required.
• Apply an initial mist coat and allow approximately 30 minutes drying time.
• Apply a second coat to achieve a dry film thickness of 0.6-0.9 mils.
• Spray application is recommended; brush or roller application should be limited to small areas.

Compatibility & Limitations

• Compatible with aliphatic polyurethane topcoats
• Suitable for interior and exterior aerospace applications
• Can be applied by spray or brush, although spray application is preferred
• Requires accurate mixing and induction time for optimum performance
• Pot life of approximately four hours after mixing

Packaging & Procurement

• Supplied as a packaged two-gallon kit
• Two-component system
• Factory packaged at a 1:1 mixing ratio
• Available in Type I Yellow and Type II Dark Green or Grey

Why This Product is Chosen for AOG / MRO

• Provides durable corrosion protection for aircraft structures and components
• Compatible with common aerospace polyurethane finishing systems
• Low VOC, non-chromate formulation supports modern environmental requirements
• Suitable for both production and maintenance repainting operations
• High-build properties improve coating efficiency during repair work

Practical Suggestions for Your Team (AOG Mindset)

• Mix only the quantity required within the four-hour pot life.
• Always allow the recommended induction period before spraying.
• Use spray equipment whenever possible to achieve uniform film build.
• Apply the recommended mist coat first to improve adhesion.
• Measure dry film thickness to ensure compliance with aerospace specifications.
• Use only the recommended thinner to maintain product performance.

Manufacturer / Aviation Spec Codes

• Product Name: MIL-PRF-23377J Type I Class N Epoxy Polyamide Primer
• Product Code: 200Y46
• Product Type: Two-component epoxy polyamide primer
• Specification: MIL-PRF-23377J Type I Class N
• VOC Compliance: Maximum 340 g/L