Removing a powdercoat finish

[HemiBuell]

I have some large parts from a testing fixture which were powdercoated when originally produced a few years ago.

We need to removing the powdercoat and replace it with a a variety of surface finishes on certain parts of the fixture. Down to a 8 finish.

Anybody have some experience removing powedercoat finish? The parts have a complex surface geometry which makes machining it off difficult. I wonder if it could be bead blasted or cooked off in some way.

Any information you hae would be appreciated.

 

[alexit]

Powdercoat can be burned off by baking at temperature higher than application temperature. Good cleaning afterwards should take care of remnants.

 

[BobM3]

Try

http://www.oakite.com.

They have several products for stripping powdercoat.

 

[unclesyd]

I have cleaned numerous powdercoated parts in a Pyrolysis furnace. The only stipulation is the parts have to be able to withstand time at temperature of 900°F. This process doesn't alter the existing metal finish.

A local coating company uses wet sandblasting to recover powdercoated parts. The grit is tailored to final finish desired.

Usually a powdercoat prep is considerably rougher than an 8 so you should look to having to perform a secondary operation to achieve the desired finish if the parts are not currently at the desired finish.

The equipment that I use.

http://www.pcpconline.com/pcpconline/index.php

http://www.extrudehone.com

 

[swall]

In house, we remove epoxy powdercoat by burning it off at 770F in an existing belt temper furnace,followed by a re-shot peening to remove the residue as well as restore the shot peen condition that was relieved by the burnoff.