I have been working on the Sunbeam Tigers front suspension and the spindles were powder coated but the masking on the seal surface was not so good. So need to remove some baked on plastic as it be. Looked around and didn’t find much except the ‘Commercial’ solutions.
I found this on the web, cut and pasted the text but can’t remember the dang site for credit. It was a motorcycle site and I thank them (would post a link if I could find it again)
The easiest and cheapest way to remove paint and powder coating is with gasket remover. The product we use in our shop is Permatex Gasket Remover (item #80646). It comes in a 12 ounce aerosol can which is more than enough to do even large projects like engine cases. It is available from most auto parts stores. Other products, such as Zip Strip paint remover, may also work, but the Permatex product is what we have had the most success with.
Simply spray on a liberal coating to the part you are trying to strip, and wait 10-15 minutes. Be sure not to get any on areas that you do not want stripped. Make sure to wear eye and skin protection as it can irritate both.
After 10-15 minutes, the powder coating will bubble and peel. Wipe off the gasket remover and loosened powder coating with a disposable rag. You may need to reapply as some areas will be missed the first time. That’s it! Your part should be stripped down to the bare metal. Make sure to wash with wax and grease remover before you try to repaint.
Well seems problem might be solved. I’ll give it a try and report back. I’m not a huge fan Powder coating, it does look nice and is durable, but sometimes a pain…