Epoxy primer question

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  • #34988
    motor head


    I primed one of the fenders I’m working on last friday and it shows on the container that overcoat time is between 30-60min. I get that part, but if I want to put on the primer surfacer is there a window where I don’t have to sand the epoxy, if so what is that time period . . . 30-60 min? I have obviously missed the “no sand” window so the next question is what grit paper should I use to scuff the epoxy. Next question . . . the poly primer surfacer shows to mix the activator 5% by weight . . . any tips if you don’t have a scale to measure what you want to spray. PS used the concours gun to spray epoxy with the recomended 1.8 tip, worked awesome! Thanks for Great products!:cool:

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