Wolfpack PVC pipe cleaner 500 ml. -Degreases and removes dirt from the surfaces to be joined. -It acts as a primer, chemically preparing the surfaces to which it has been applied. -It is the guarantee of a perfect weld. -It is not an adhesive thinner. -Ideal for cleaning pipes. -This product may leave marks or stains on certain surfaces. It is recommended to test first in an inconspicuous place.