Slick Seam is an excellent underwater seam compound for wooden boats. Formula requires no mixing, stirring, or priming. Made with wax, pure mineral products, and silicate fibers, Slick Seam adheres well to most solid surfaces whether they are dry, wet, or even oil stained. Applies easily and cleans up quickly with mineral spirits. Ready for paint in 30 minutes. Stands up well to flexing and swelling wood. One jar is enough to caulk the seams on most boats up to 20' in length.