Jon1097 Posted April 29, 2015 Report Share Posted April 29, 2015 I sprayed a gallon of undercoating on the bottom of a vehicle but ran out of material before I finished. Since nobody carries this locally, I ordered another gallon to finish. My question is since it will be several days between painting, do I put a small amount of thinner over the already dried coat to get the new coat to stick? Or will it stick to a coat 3 days old by itself? Or will it not stick at all to the first coat? I was only able to do one coat and in some areas you can see through so it will need to be touched up with a second coat. Thanks. Quote Link to comment Share on other sites More sharing options...
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