

▲ 6 r/Powdercoating
Trouble with Matte Powder Surface Finish
Hi,
I am relatively new to powder coating, but have two Eastwood PCS-250 powder coat guns and a growing collection (25+) of compatible bottles with various powders. I am having some difficulty getting matte powders (from Prismatic Powders) to spray consistently. I can achieve a decent finish on one side of a flat panel, but almost always the back side and it does not seem to make much difference if I spray the front side first or the back side first. Inevitably, the front side usually ends up with at least a small area of cod-eyes or small wells as shown in the pictures. I originally thought these might be areas where the flattener in the powder was not mixing well, but now I am not so sure.
Questions:
- Is there something I can change (equipment, settings, prep, technique) that would improve the surface consistency?
- Would a different, but somewhat reasonably priced, powder coat gun significantly improve the surface consistency?
- Is there another powder coat gun that could work (either by inserting a feed tube) or 3D printing an adapter or custom top with my existing collection of Eastwood bottles? They are convenient for small jobs and storage...
- In researching other powder coat guns, some of them have latex hoses for the pickup; I am allergic to latex (and bananas and pineapples) so can they be replaced with an alternative hose or would that impact the performance?
Thanks!
u/ShadesJeff — 7 days ago