I have painted over some left over paint. If you are sure its solid and have sanded over it. I have used the hammer paint and it worked well, but I still like the Dupli-Color Engine Enamel DUPDE1635 Ford Semi Gloss Black spray paint better. You can coat every 10-15 minutes, so you can build it up fast. This is important if your going over existing because you’ll want to add a few more coats so it evens out.
Just one note if you use it, if you let it sit for more than an hour between coats, you will need to wait 7 days before recoating. So don’t forget what your doing in the middle. It will bubble, and its a bitch to get off (which if you think about it, is a good thing).
I’ve never used real japanning. Its quit a process for very little gain.
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