# Compliance evidence pack (UNOFFICIAL) - **Question:** MIL-PRF-85285 - **Generated:** 2026-07-22 18:38 UTC - **e-Publishing catalog checked:** 2026-07-12 - **Supplement layer:** none selected - **Source:** CheckMyAFI (https://checkmyafi.com) — unofficial reference > **UNOFFICIAL — VERIFY BEFORE CITING.** Quotes come from indexed copies of public publications. The certified PDF on e-Publishing is the only authoritative source. Your MAJCOM/unit supplement may be stricter. ## Synthesized answer (unofficial) MIL-PRF-85285 is a performance specification for aircraft and support equipment topcoat with four types defined by intended use: Type I — aircraft weapons systems and other applications [MIL-PRF-85285 para 6.1] Type II — support equipment [MIL-PRF-85285 para 6.1] Type III — aircraft and support equipment [MIL-PRF-85285 para 6.1] Type IV — aircraft weapons systems where extended weatherability is necessary; direct replacement for Type I [MIL-PRF-85285 para 6.1] The topcoat is formulated for extremes of the naval aviation environment with no commercial equivalents meeting its combined properties [MIL-PRF-85285 para 6.1]. Only the appropriate thinner (classes H/NH) or deionized/distilled water (classes W/NW) may be added to achieve proper spray viscosity [MIL-PRF-85285 para 6.1]. Qualification requirement: Contracts will be awarded only for products qualified on the Qualified Products List (QPL-85285) at time of contract award [MIL-PRF-85285 para 6.5]. **AETC supplement Unofficial — answered from indexed publication text, which may be incomplete or out of date. Your MAJCOM/unit supplement may be stricter. Verify the official PDF before acting or writing a finding. ## Controlling Air Force guidance (quoted) _No departmental passage retrieved._ ## Supplement deltas **DAFI 63-140 AFRC Sup 433AW Sup, p. 52** (effective/current as of 2022-12-08) > S SYSTEM SPECIFIC MARKINGS A4.2. (433AW) Reference for Application of C-5 Markings A4.2.1. (Added-433AW) Texas Flag Tail Banner. A4.2.1.1. (Added-433AW) White shall be aircraft grade white 220 vinyl or Military- Performance (MIL-PRF)-85285 polyurethane paint, 17925 white. Note: View shown in Figure A4.2.1 is for reference only. Some markings have been omitted and picture does not show to scale. Note: View shown below illustrates marking for LEFT side; banner dimensions for RIGHT side are mirrored but not shown. A4.2.1.2. (Added-433AW) Red shall be aircraft grade ruby red 220 vinyl or MIL-PRF- 85285 polyurethane paint, 11136 red. A4.2.1.3. (Added-433AW) Blue shall be aircraft grade cobalt blue 220 vinyl or MIL- PRF-85285 polyurethane paint, 15044 blue. Note: All T-Tail markings must be loca Official source: https://static.e-publishing.af.mil/production/1/433aw/publication/dafi63-140_afrcsup_433awsup/dafi63-140_afrcsup_433awsup.pdf **AFGSCI 21-105 BARKSDALEAFB Sup para 1.4.2.1.1.4, p. 5** (effective/current as of 2017-09-07) > with Matte White Vinyl (P/N P83242A). The serial numbers will not be shadowed. 1.4.2.1.1.3. (Added-Barksdale) Aircraft 61-028 is designated as the 49th OT Aircraft. Unit designator, the letters “TES” (24”H), and tail number markings will be painted flat black (Mil-PRF-85285) or stenciled with Matte Black Vinyl (P/N P58744A) and shadowed towards the lower aft side of the markings with flat white paint (Mil –PRF-85285) or with Matte White Vinyl (P/N P83242A). The 6 AFGSCI21-105_BARKSDALESUP 6 SEPTEMBER 2017 serial numbers will be shadowed in the same fashion. 1.4.2.1.1.4. (Added-Barksdale) Aircraft 61-002 is designated as the 2 OG/CC Aircraft. Unit designator and tail number markings will be painted flat black (Mil- PRF-85285) or stenciled with Matte Black Vinyl (P/N P58744A) and shadowed t Official source: https://static.e-publishing.af.mil/production/1/barksdaleafb/publication/afgsci21-105_barksdaleafbsup/afgsci21-105_barksdaleafbsup.pdf **AFI 21-101 AETC Sup 314AW Sup para 11.44.7.5, p. 300** (effective/current as of 2021-07-21) > uipment (AGE) Painting. 11.44.7.1. (Added-AETC) Discontinue use of Chromium-Based Primers and legacy topcoat Type I/II Topcoats during AGE paint operations. 11.44.7.2. (Added-AETC) Over bare steel substrates, instead of MIL-PRF-23377 Type I, Class C use MIL-PRF-32550, Type I, Form A, Class S a non-chrome metal-rich primer. 11.44.7.3. (Added-AETC) Over aluminum or a combination of aluminum and steel use non-chrome MIL-DTL-53022 or its alternate MIL-PRF-23377 Type I, Class N. 11.44.7.4. (Added-AETC) Use MIL-PRF-85285 Type IV Advance Performance Coating. It is a new formulation that provides an extended service life. MIL-PRF-85285 Type I/II will be deleted from TO 1-1-8 and TO 35-1-3 by January 2022. 11.44.7.5. (Added-AETC) If unable to procure non-chrome primers or extended service AFI21-101 Official source: https://static.e-publishing.af.mil/production/1/314aw/publication/afi21-101_aetcsup_314aw_sup/afi21-101_aetcsup_314awsup.pdf ## Federal / DoD standards implemented (quoted) _No federal/DoD passage retrieved._ --- Retrieval confidence: 100.0 · CheckMyAFI is not an official Air Force product. Verify every citation against the certified publication.