If you need to remove paint from polyester, you must use care, or you could end up destroying the very material you are trying to save. Overly aggressive removal strategies combined with the wrong cleansers can lead to tearing and bleaching. Fortunately, you can eliminate paint stains from polyester by using the appropriate techniques. You should know which cleaning materials to use and which not to use, or you may end up exchanging the paint stains for discolouration.
Apply approximately four to six drops of olive oil to a clean, cloth rag.
Lubricate the polyester surface by applying olive oil to the paint with the rag.
Allow the oil to sit for 20 seconds. Scrape free as much paint as possible, using a plastic putty knife.
Dampen a fresh, clean cloth rag with turpentine. Clean the olive oil and any remaining paint from the polyester by scrubbing it in a circular motion with the damp rag. Wait ten to 20 minutes for the turpentine to evaporate.
Don't use a metallic scraper on polyester, as this could tear the material. Don't scrape unlubricated polyester, as this could cause tears. Do not use harsh cleansers to remove paint from polyester, as this can cause the paint to melt and bond further to the material. Turpentine is a tree-based solvent that won't bleach polyester. Do not use petroleum-based solvents like white spirit, paint stripper or lacquer thinner.