Originally Posted by swankfly
Wait a minute, is this a freaking secret? How come it's not mentioned in any of the seam sealing directions?
Its been mentioned plenty.
Talc, baby powder, even corn starch has been recomended in the past.
Letting the seam sealer dry for 24 hours with the tarp fully strung tight at room temp is good too. Then dust (if needed).
Apply seam sealer sparingly (your just sealing the needle holes). Excessive amounts looks gloppy and can take days to cure properly. Add mineral spirits to dilute and aid in the drying process.
(doing a search for baby powder or talc may help?)