Substrates Coating Galvanized Steel (Duplex Systems) Coating galvanized steel in duplex systems — zinc surface conditions, sweep blasting and pretreatment, compatible primers and avoiding saponification. 4 min read
Surface Prep Preparing Galvanized Steel for Coating How to prepare hot-dip galvanized steel for paint or powder: surface conditions, ASTM D6386 and SSPC-SP 16 methods, wet storage… 5 min read
Failures Saponification Why alkyd and oil-based coatings turn soft, sticky and peel on concrete, galvanizing and zinc primers, and how to diagnose,… 5 min read