Original Hotcoat Powder Coating Gun

Original Hotcoat Powder Coating Gun

Product Review (submitted on November 22, 2012):

I bought this gun back in 2006 and have used it to coat hundreds of parts from screws to giant braces and brackets. The gun works great if you can keep it from breaking. I've re-glued the tube to the gun handle multiple times until I finally decided to install set screws to make it permanent. That's when I found the internal piece was broken. I could probably make a new piece out of steel, but it might be better to just buy a new gun.

Tips: When the powder doesn't stick to your part, try touching the electrode tip to the part to draw a spark. It seems to help the powder stick as if it establishes a path of conductivity. Also, pre-heat the parts to 200-250F. Make sure they are clean and grease free. I use brake cleaner because it is available and cheap.

Remember to bake everything for 20m minimum once the powder flows. Use an IR thermometer to verify temp. It's OK to bake longer. I shoot for 30m on critical parts. Of course, beware of clears as they can be over-baked. Pre-heat heavy parts like intake manifolds as they take too long to come up to temp and may not allow the paint to flow out completely before it starts curing. This will result in paint that doesn't stick well, has a textured/wrinkled finish, or other problems.