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deuce_roadster · 05-09-2020, 06:01 PM

If it were me I would try using current urethane hardener but, use less of it. The acrylic enamel actually is a low grade urethane. I have successfully done this with old DAR 9000.
If you are going over previously painted hardened enamel, I know of 1 case where a friend tried to put another coat on but was out of hardener so just reduced the enamel and it made fish eyes the size of dinner plates. I loaned him some DRX 80 and after he cleaned up the mess it went on fine. Message here is once you use the catalyst, you need to keep using it on successive coats. Good luck.

05-09-2020, 06:01 PM	#4
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,800	Re: Painting with Acrylic Enamel question If it were me I would try using current urethane hardener but, use less of it. The acrylic enamel actually is a low grade urethane. I have successfully done this with old DAR 9000. If you are going over previously painted hardened enamel, I know of 1 case where a friend tried to put another coat on but was out of hardener so just reduced the enamel and it made fish eyes the size of dinner plates. I loaned him some DRX 80 and after he cleaned up the mess it went on fine. Message here is once you use the catalyst, you need to keep using it on successive coats. Good luck.