Cured thermoset powder does not dissolve in ordinary solvents, so stripping uses a burn-off oven, hot chemical stripper tanks, or abrasive blasting. The method depends on the substrate: heat-treated aluminum loses temper at full burn-off temperatures, and thin sheet warps. Rejects that go to strip cost time and money, which is why first-article checks on adhesion and color matter.
Whole batch failed cross-hatch, they all go to strip, there's no saving them with a recoat.
Also heard as
- stripping
Related terms
Burn-off oven
A high-temperature oven that burns cured powder off racks, hooks and rejected parts.
Blast
To strip and roughen a part with abrasive media before coating, or as a noun, the blast room itself.
Recoat
A second coat of powder over a cured first coat, used to fix rejects or build a multi-coat system.
Cross-hatch adhesion
An adhesion test that cuts a grid through the film, pulls tape over it and rates how much coating comes off.