Prepping sheet metal before painting


Processes for Preparing Bare steel for Powder Coating. The key to preparing the substrate is removing the oxide layer, providing a pure metal surface for the coating to which to bond. All metal surfaces and welds to be powder coated shall be thoroughly cleaned of rust, mill scale, slag, dirt, oil or grease and other foreign substances. CHROME MOULDING CLIPS can scratch a new paint job when they are pushed through the body. POR-15, even if scratched off, will only rust where it's removed, so rust won't travel upward to ruin that new paint job. Coat around holes and under chrome before you prime and paint. ROOF DRIP RAILS are a place where rust begins early. Processes for Preparing Bare steel for Powder Coating. The key to preparing the substrate is removing the oxide layer, providing a pure metal surface for the coating to which to bond. All metal surfaces and welds to be powder coated shall be thoroughly cleaned of rust, mill scale, slag, dirt, oil or grease and other foreign substances. Latex primers are water-based and ideal for prepping unfinished drywall for painting. They are more flexible and fast drying, and are less brittle than oil-based primers, making them less susceptible to peeling and cracking. They are also good for priming soft wood (such as pine), brick and concrete and galvanized metals.