Intrepid Coatings MIL-PRF-85285/TY1/ CL.H # 16473 (2-USG-KIT)

Additional Product Information

Overview

This is a two-component, aliphatic polyester polyurethane coating designed for high-performance industrial and aviation protective finishing. It is widely used in maintenance, repair, and overhaul (MRO) surface protection where chemical resistance, abrasion resistance, and long-term exterior durability are required. Aviation and defense maintenance teams rely on this coating for its superior ultraviolet stability, adhesion strength, and corrosion resistance under harsh operational environments.

Key Technical Specs for MIL-PRF-85285E TY. I or TY. II, CL.H A-1340-66 Polyurethane

• Type: Two-component aliphatic polyester polyurethane coating
• Volume Solids: 35% – 40% (varies by color)
• Weight Solids: 50% – 60% (varies by color)
• Viscosity: Approximately 30 seconds (No. 4 Ford Cup)
• Gloss Level (60°): Gloss colors – minimum 90% Semi-gloss colors – 15% – 45% Camouflage colors – maximum 5%
• Pot Life: Minimum 5 hours at 25°C (77°F)
• Set-to-Touch Time: Within 6 hours at 25°C (77°F)
• Hard Dry Time: Within 12 hours at 25°C (77°F)
• VOC Limits: Type I – Maximum 420 g/L Type II – Maximum 340 g/L
• Typical Service Temperature Range: Approximately -40°F to 180°F (-40°C to 82°C)
• Recommended Film Properties: Tough, abrasion-resistant cured film with strong exterior UV stability

Approvals & Specifications

• Meets military coating specification requirements of the United States Department of Defense
• Conforms to MIL-PRF-85285E Type I or Type II Class H performance criteria
• Tested in accordance with ASTM International performance standards for coating durability and chemical resistance
• Recommended primer compatibility with MIL-PRF-23377G and MIL-P-85582D primers

Typical Aircraft MRO / AOG Applications

• Exterior aircraft fuselage and structural surface protection
• Wings, control surfaces, and exposed metal assemblies
• Military aircraft camouflage and identification coatings
• Ground support equipment protective finishing
• Corrosion protection on aviation maintenance components
• Weather-exposed aerospace hardware surfaces

Compatibility & Safety Notes

• Compatible with properly prepared metal substrates and approved aerospace primers
• Surface must be clean, dry, and free from grease, wax, moisture, and loose coating material
• Old peeling coatings must be removed using sandblasting or wire brushing
• Use MIL-T-81772B Type I polyurethane thinner if reduction is required
• Use proper personal protective equipment including respiratory, eye, and skin protection
• Ensure adequate ventilation during mixing and application

Packaging & Procurement

• Available in industrial procurement packaging suitable for maintenance operations
• Common supply configurations include 1 gallon (3.8 L) and 5 gallon (18.9 L) commercial containers depending on order requirements
• Two-component system supplied in matched ratio packaging for ease of mixing
• Recommended storage in cool, dry, and sealed conditions away from ignition sources

Why MIL-PRF-85285E TY. I or TY. II, CL.H A-1340-66 Polyurethane is Chosen for AOG / MRO

• Fast and reliable chemically cured protection suitable for maintenance turnaround operations
• Excellent ultraviolet radiation resistance for prolonged exterior service life
• High abrasion and chemical resistance supports operational reliability
• Flexible application methods including brush, roll, or spray systems
• Supports mission-critical surface protection requirements

Practical Suggestions for Your Team (AOG Mindset)

• Maintain emergency stock of mixed-component kits for rapid deployment during AOG events
• Allow 15 minutes induction time after mixing components before application
• Train maintenance personnel on proper surface preparation procedures to maximize adhesion performance
• Monitor temperature conditions as higher temperatures shorten pot life while lower temperatures extend curing time

Manufacture / Aviation Spec Codes

• Manufacturer Code: A-1340-66
• Specification: MIL-PRF-85285E Type I / Type II Class H
• Government Specification Authority: United States Department of Defense
• Thinner Specification: MIL-T-81772B Type I

Alternative Names & Descriptions

• Military specification polyurethane aircraft coating
• Aerospace exterior protective polyurethane finish
• High-solids aliphatic polyurethane aviation coating
• Low-VOC military grade polyurethane topcoat
• Two-component aviation polyurethane protective paint