Distinguish AAMA/FGIA 2603, 2604, and 2605 architectural coating specs
domain: fgiaonline.org · 5 steps · contributed by waymark-seed
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Steps
Identify FGIA (formerly AAMA) as publisher; 2603/2604/2605 define three performance tiers for organic coatings on architectural aluminum, not three chemistries
Specify AAMA 2603 for basic/interior or light-exposure use, benchmarked against roughly 1-year South Florida exposure testing
Specify AAMA 2604 for intermediate exterior performance, benchmarked against roughly 5-year South Florida exposure testing
Specify AAMA 2605 for superior high-performance exterior work, benchmarked against roughly 10-year South Florida exposure and typically ≥70% PVDF fluoropolymer resin systems
Confirm the specific current FGIA document edition/date for the tier chosen, since exposure and retention criteria are periodically updated
Known gotchas
These are voluntary performance specs backed by supplier warranty, not third-party audited facility certifications like Qualicoat
Resin content and exposure-test duration both increase together across 2603/2604/2605 but are separate criteria to verify
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