Hi list, I have a grand piano being sprayed black.How can you spray one side of the lid, and turn over without messing the other side up? We had it sitting on a blanket,and it left an indentation,after three days of drying.We have it now sitting on finishing nails,as it will only mess up a small area. I have never had this problem before.Everything we've tried has left a mark on the finish. Thanks, Hazen Bannister
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