Original: This can be done with a rag and some turpentine for a certain time while the paint is wet , but after a while , the hardened layer must be scraped . Oil paint dries by oxidation , not evaporation , and is usually dry to the touch within a span of two weeks .
Simplified: Oil paint is usually dry to the touch in a day to two weeks , depending on how much oil and turpentine is in it .