MIL-PRF-85285 is a two-component, high-solids, aliphatic polyurethane coating for military aircraft and aerospace equipment. These coatings are known for their excellent weather resistance, chemical resistance, and durability, making them suitable for demanding applications like aircraft exteriors and support equipment.

Applications
- Aircraft Exterior:
The primary application is for exterior coatings on military aircraft to protect against harsh environmental conditions and maintain aesthetics.
- Support Equipment:
Type II coatings are often used for support equipment, providing durability and chemical resistance.
- Industrial Applications:
MIL-PRF-85285 polyurethane coatings are a robust and reliable solution for protecting military aircraft and aerospace equipment from environmental hazards and maintaining their performance and appearance.
High Solids:
This means the coating contains a high percentage of solid materials, reducing the amount of volatile organic compounds (VOCs) and leading to thicker, more durable films with fewer coats.
Aliphatic Polyurethane:
Aliphatic polyurethanes offer superior UV resistance and weatherability compared to aromatic polyurethanes, making them ideal for exterior applications.
Two-Component System:
This allows for a controlled cure and improved performance, resulting in a durable, chemical-resistant coating.
Excellent Resistance:
The coating provides excellent resistance to chemicals, solvents, and abrasion, protecting surfaces from damage and degradation.
High Performance:
MIL-PRF-85285 coatings are designed for high-performance applications where durability and resistance are critical.
Various Types and Classes:
The specification includes different types (I, II, III, IV) and classes (H) catering to various applications and performance requirements.