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Engine Primer

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Restoring an 88 RM250 and had the engine soda blasted to bare metal. Today I sprayed some Rustoleum self etching primer on the engine before using the VHT Engine Enamel paint. The primer looks kind of "soft" to me. I don't know whether that's due to it not being fully cured yet or not. I can easily run a finger nail through to the bare metal.

Will this cure to a more scratch resistant finish after a few days? I'm hoping I didn't make a mistake using this primer but the blaster recommended it be done before the paint was applied.

Thoughts?

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Is this primer rated for high temperatures? If it is rated for the same hi-temp use as the VHT, I wouldn't worry too much. One thing I would worry about is drying time and recommended time lapse before another coat can be applied. I've been burned real bad with paint turning to a stucco like finish because I didn't wait long enough for the primer to dry.

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