Bondo Glass Body Filler 1 qt

Qt, glass body filler with cap, reinforced with strands of fiberglass, eliminates need for backing strips or fiberglass resin on small holes & rust.
Unique reinforced filler containing short, interlocking fiberglass strands and fibers
Twice as strong as regular body filler
Repairs small (dime size or smaller) rusted-out metal holes and shattered fiberglass body parts
Works great on boats. Waterproof. Sandable in only 20 minutes. Compatible with all paint systems.
Eliminates needs for backing strips, fiberglass resin or cloth on small holes and rusted-out areas