Interlux Surfacing Putty. A fast drying, single package surfacing compound. Ideal for filling fastener holes and shallow gouges. Great for fairing up minor surface imperfections on bare wood and fiberglass prior to the application of paint. Heavy-bodied, it dries quickly, sands easily and has good adhesive properties. Do not thin. Do not apply over painted surfaces. Matte finish. White. Pint.