HOW LONG TO WAIT BEFORE SPRAYING 2K OVER SPI EPOXY

JC Daniel

Promoted Users
I am getting ready to spray 2 coats of SPI epoxy primer on a project car, How long should I wait before spraying 2K over it?
 
Overnight is best.

Personally I wait overnight and then lightly block sand the epoxy. This will act like a guide coat and reveal any low spots that might need filler.
After filler you can shoot one coat of epoxy over those areas and then shoot 2k after one hour.
 
I might be overly cautious but I always give it 24 hours. Or put it in the sun for 6-8 hours. 48 hours for polyester primer.
 
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