Steel Spray technical knowledge

When using the sprayer, spray iron and steel shelves are essential, then you know the knowledge about this technology do? Experts tell you must first performed on polished steel surface rust treatment, but will also have to remember in polished steel structure best be completed within four hours the first paint coating. stone coated steel roofing tile

1: the need to pay more attention, we must first be rust on the steel surface grinding process, under normal circumstances, except such as rust, scale and other debris. Of course, we must pay more attention to the quality control of its surface treatment provisions should reach GB8923 "steel surface before painting Rust grades and preparation grade" standards for Sa2.5 level, and the surface roughness of 35-75um, polished after the sand dust divisible.

2: Basically, polished steel structures should best be completed within four hours the first paint coating. Very often, during use, we also need to focus on using the ET-98 long-zinc-rich coating of inorganic phosphate as a primer, in most cases, are, rust can, from time grinding machine, but with wire brush, sandpaper or steel grinder handle. stone coated steel roofing tile

3: If we encounter welded parts, I suggest you'd better be able to weld the candle within 72 hours after Do not paint.

4: Under normal circumstances, we are on the zinc coating is best to use swipe grade grinding method to remove the ash layer as well as its oil and other impurities, of course, in the latter part of the course, we also need to pay attention to their brushing 70 - H epoxy iron red anticorrosive paint.

by www.metal-roofing-sheet.com