What is the standard film thickness for PVDF coating? How is coating quality ensured to meet international standards?

A: For high-quality curtain wall grade, the minimum total dry film thickness should be no less than 30 microns (typically topcoat ≥25μm, primer ≥5μm). We ensure quality by: 1) Using renowned resin brands (e.g., Arkema Kynar® 500 or Hylar 5000). 2) Strictly adhering to the AAMA 2605 standard (the authoritative American standard for high-performance organic coatings) for production and testing, which sets rigorous requirements for weatherability, color difference, gloss retention, etc.