I think it would depend on your project. If it were something that might be altered due to climate either indoor or outdoor, I would put a clear coat of spar urethane over enamel paint for sure.
Enamel would require an oil based sealer. Oil based sealer usually yellows. Enamel in and of itself is extremely hard. You really don't need to seal it.
I was wondering if you could help me with something -- I have an entirely oak kitchen. I know it's the rage now to paint or gel stain cabinets. I've been considering ...
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No, it's a seallant
I think it would depend on your project. If it were something that might be altered due to climate either indoor or outdoor, I would put a clear coat of spar urethane over enamel paint for sure.
Enamel would require an oil based sealer. Oil based sealer usually yellows. Enamel in and of itself is extremely hard. You really don't need to seal it.
No, you don't. If you put any finish over enamel paint it should be a clear coat of poly, not a wax.
https://www.wikihow.com/Work-With-Enamel-Paint
No.