PPG Deft 03-BL-159 Flat Blue MIL-PRF-85285E Topcoat – 2 Gallon Kit for Military Aviation
PPG Aerospace Deft 03-BL-159 is a flat blue (FS#35237) MIL-PRF-85285E Type I, Class H aerospace polyurethane topcoat used on military and government aircraft where blue color designations are required per applicable technical orders and paint scheme specifications. FS#35237 is a specific flat blue color in the Federal Standard 595 system used on certain military trainer aircraft, government aviation platforms, and specific surface areas or markings on tactical aircraft requiring this blue designation.
The 2 gallon kit provides production-scale material for significant blue area painting operations — particularly for aircraft types where blue color covers substantial surface areas, ceremonial aircraft where consistent blue color matching across multiple aircraft is required, or depot maintenance events where large sections of blue painted area are restored during scheduled repainting.
Deft 03-BL-159 delivers the full performance profile of MIL-PRF-85285E — aliphatic polyurethane UV stability, chemical resistance, flexibility, and appearance retention — in the flat blue FS#35237 color formulated to the Federal Standard 595 reference for reproducible color matching across production batches.
| Attribute | Detail |
|---|---|
| MPN | DE03BL159FS#35237 |
| Brand | PPG Aerospace / Deft |
| Product | Deft 03-BL-159 |
| Color | Flat Blue FS#35237 |
| Type | Two-Component Aerospace Polyurethane Topcoat |
| Size | 2 Gallon Kit |
| Specification | MIL-PRF-85285E Type I, Class H |
| Surfaces | Military Aircraft, Government Aviation, Ceremonial Aircraft |
| Application | Spray Application |
| Industry | Aerospace, Military, Defense, Depot MRO |
Technical Information
Deft 03-BL-159 uses the same aliphatic polyurethane chemistry as other Deft MIL-PRF-85285E topcoats — UV-stable aliphatic isocyanate hardener with hydroxyl-functional polyol base — with the FS#35237 blue pigment formulation calibrated to the Federal Standard 595 color reference. Blue pigments in aerospace coatings are typically phthalocyanine or ultramarine derivatives that provide the required hue, saturation, and lightfastness to maintain the FS#35237 color specification through outdoor UV exposure.
The UV stability of the aliphatic polyurethane binder is particularly important for blue pigments, which can be susceptible to color shifting under UV exposure in some coating systems. The Deft MIL-PRF-85285E formulation is developed to minimize UV-induced color drift in the blue pigment system, maintaining the FS#35237 color match throughout the service interval between paint events.
Application of 03-BL-159 follows the same spray procedure as other Deft MIL-PRF-85285E products. Ensure the spray equipment is clean and free of previous coating color contamination — blue topcoat is sensitive to contamination from gray, green, or other previously sprayed colors that could alter the final blue color appearance.
Why Choose Deft 03-BL-159 Flat Blue?
- ✅ MIL-PRF-85285E Qualified — U.S. military spec aerospace polyurethane
- ✅ FS#35237 Flat Blue — Specified military and government blue color
- ✅ UV-Stable Blue Pigment — Minimizes color drift under outdoor exposure
- ✅ 2 Gallon Production Kit — Volume for large blue area painting operations
- ✅ PPG Deft Trusted Quality — Reliable military aerospace coating supply
Applications
Deft 03-BL-159 is used on military trainer aircraft, government aviation platforms, ceremonial aircraft, and specific military surface areas requiring flat blue FS#35237 MIL-PRF-85285E finish per applicable technical orders.
Frequently Asked Questions
Q: What is PPG Deft 03-BL-159?
A: 03-BL-159 is a flat blue FS#35237 MIL-PRF-85285E qualified aerospace polyurethane topcoat for military and government aircraft requiring the specific FS#35237 flat blue color.
Q: MPN for Deft 03-BL-159 2 gallon?
A: MPN is DE03BL159FS#35237.
Q: What is FS#35237?
A: FS#35237 is a Federal Standard 595 flat blue color designation used on certain military aircraft, trainers, and government aviation platforms where blue topcoat is specified by the applicable technical order.
Q: Why clean spray equipment before applying blue topcoat?
A: Residual gray, green, or other colors in spray equipment can contaminate the blue topcoat, altering the final color appearance. Thorough equipment cleaning before blue application is important for achieving the specified FS#35237 color.
Q: Is a primer needed before Deft 03-BL-159?
A: Yes. Apply an approved corrosion-inhibiting primer before MIL-PRF-85285E topcoat. Consult the applicable technical order for the required primer system.
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