Evercoat Home Fix Super Strength Universal Repair Filler is a contractor's grade solution for rebuilding damaged wood, metal, and fiberglass with superior bonding. Featuring high build capabilities, excellent adhesion, and a formula fortified with strands of fiberglass, it won't shrink, crack or crumble, and can be routed and shaped to desired contour. Suitable for both indoor and outdoor use, this 3 lb. can is sandable and paintable in just 0.5 hrs.