Our Access Doors Are Tested and Rated for Abrasion, Salt Spray and UV Resistance

The Toughest Access Doors in the Industry – Tested and Rated to Resist Wear, Corrosion, Fading and Degradation!

Williams Brothers doors are built to withstand high-traffic environments and harsh outdoor conditions while maintaining their appearance and structural integrity over time.

WB Doors Abrasion Resistance Test ReportAbrasion Resistant Tested Finish

Our access doors have been tested to ASTM D4060 – the industry-recognized testing for abrasion resistance of coatings. They demonstrated long-lasting durability under extreme conditions withstanding 4,550 abrasion cycles before the coating wore through. Our doors are designed to maintain their appearance in high-traffic environments making them ideal for demanding commercial and industrial applications.

  • Tested to ASTM D4060 Standards – Industry-recognized testing for abrasion resistance of coatings
  • 4,550 Abrasion Cycles Before Wear-Through – Demonstrates long-lasting durability under extreme conditions
  • Wear Index of 91.1 – Indicates excellent resistance to scratching, scuffing, and surface wear
  • High-Performance Finish – Maintains appearance and integrity in high-traffic environments
  • Ideal for Commercial & Industrial Applications – Built to withstand repeated impact and friction

Abrasion Resistance Test Report

Salt Spray Test Certified Finish

Our access doors have passed independent ASTM B117-19 salt spray testing, demonstrating excellent resistance to corrosion—even under continuous exposure to a harsh 5% salt fog environment for 48 hours. Only minor red rust was observed on cut edges, with the primary surfaces maintaining their finish integrity.

  • Passed ASTM B117-19 48-hour salt spray test
  • Independently tested by Element Materials Technology
  • Excellent corrosion resistance under harsh conditions
  • Minimal red rust observed only on cut edges
  • Core finish remained intact and unaffected
  • Ideal for demanding, moisture-prone environments

Salt Spray Certification Test Report

UV Rated Finish

Our painted access panels underwent rigorous accelerated UV exposure testing using both Xenon Arc and Fluorescent UV chambers. After 48 hours of accelerated UV testing—simulating long-term sun and weather exposure—our finish showed virtually no fading, discoloration, or degradation. This proves our doors are built to withstand harsh outdoor conditions while maintaining their appearance and integrity over time.

  • Passed ASTM G154-23 (Fluorescent UV) and ASTM G155-21 (Xenon Arc) standards
  • 48-hour accelerated UV exposure—equivalent to extended real-world sun damage
  • No visible change in finish, color, or gloss—pre- vs. post-exposure
  • Independently tested by Element Materials Technology
  • Designed for outdoor, high-UV, and sun-intensive environments

UV Rating Test Report

The above certifications apply to the following access doors models: Basic 300, UAD 200, GP 100, GP-VIS 100, GP 101, GP 102, GP-LV 103, RP 110, SMP 120, FR 800, FR-C 800, DW 400, RDW 410, RDW 410-2, PL 500, EXT-PL 1450, EXT 1300, EXT 1350, EXT 1400, AL 1500 and AL 1600.

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