Just started out doing my own powdercoating, figured I'd have to do some on my current project car:
I haven't really messed around or tried anything special to get the powder to work with plastic valve covers yet. I have the eastwood dual voltage kit for the gun, so not really a professional setup that I can really ramp the voltage up, but I had problems getting the powder to stick to the plastic. Tried pre-heat, which helped enough to get the powder on, but ended up that 400f was too much for the plastic covers and they started bubbling slightly anyway. Maybe 350f might have worked, but the powder I have was a wrinkle finish and needs a specific cure temperature/ramp up to work right (even that took some trial and error to get it right). So I ended up with Camaro aluminum covers for this round.
But people here that have had plastic valve covers coated - do you know what temp they were cured at? My next project that I want to do some coating with doesn't have the option to replace the valve covers with aluminum.
I haven't really messed around or tried anything special to get the powder to work with plastic valve covers yet. I have the eastwood dual voltage kit for the gun, so not really a professional setup that I can really ramp the voltage up, but I had problems getting the powder to stick to the plastic. Tried pre-heat, which helped enough to get the powder on, but ended up that 400f was too much for the plastic covers and they started bubbling slightly anyway. Maybe 350f might have worked, but the powder I have was a wrinkle finish and needs a specific cure temperature/ramp up to work right (even that took some trial and error to get it right). So I ended up with Camaro aluminum covers for this round.
But people here that have had plastic valve covers coated - do you know what temp they were cured at? My next project that I want to do some coating with doesn't have the option to replace the valve covers with aluminum.