#11
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Unwaxed gel coat will remain a bit tacky. It is for middle or under layers when you want to apply another layer of gel coat or glass over it. Waxed is for the final layer so it dries hard in the presence of air. You can buy and add wax to unwaxed gel coat. Which is what I do. Or you can mist PVA over it to seal out the air after it gets mostly hard. I have done both. I find gel coat more forgiving than paint as you can always sand into it and it fills scratches.
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