Randy_Baton Posted April 19, 2014 Share Posted April 19, 2014 Using Halford grey primer, how long do I leave before I sand it down and should I wet/dry sand? Thanks. Quote Link to comment Share on other sites More sharing options...
Desey Posted April 19, 2014 Share Posted April 19, 2014 leave it till its completely dry, not just touch dry, usually 4+ hours is ok but to be safe leave it at least 8 hours if using wet and dry make certain it is 100% dry Quote Link to comment Share on other sites More sharing options...
GMballistic Posted April 19, 2014 Share Posted April 19, 2014 ^^ What he said. Best to wait till your primer is 100% dry before trying to sand it otherwise it will just start coming off in clumps where it's still wet. If your using wet & dry sand paper then just put a small amount of washing up liquid in a pot with some warm water and use that to dip your sand paper into. The water just helps stop the paper clogging up so quickly but I always find I get a better finish using wet paper than dry. Quote Link to comment Share on other sites More sharing options...
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