i literally just whipped the surface with a rag to get the dust off and sprayed a small area to test and make sure i aint have to sand all the area down ...but the results were amazing...was kinda surprised how well the paint took...and only requires small amounts of spray for a 5oz. can i sprayed the entire center console the glove box and around the ignition and didnt make a dent on the amount of paint i have in the can.