Bondo glass short strand. The one reviewed here is the short-strand fiberglass filler. Amazon. 56 Oz Filler and 1 Oz Cream Hardener 50+ bought in past month Add to cart Bondo Glass Short Strand Reinforced Fiberglass Filler,Stage 2, 2. Good luck. It is waterproof so it can be used on your boat, car, and home restoration jobs. Bondo Glass Filler: Fortify your repairs with fiberglass-reinforced strength. 5 oz hardener for quick curing Suitable for use on a variety of surfaces including metal, wood, and fiberglass Provides a durable and Bondo Short Strand Fiberglass Reinforced Filler makes an excellent foundation for hole and rust-out repairs without the need for backing strips, fiberglass cloth, or mat. . Bondo® Short Strand Fiberglass Reinforced Filler Bondo® Short Strand Fiberglass Reinforced Filler contains short, interlocking fiberglass strands that makes it stronger than regular body filler repairing holes up to 1/2 inch in diameter without the need for a backup screen or body patch. 56 Oz Filler and 1 Oz Cream Hardener Ideal for repairing rust-out and rust hole repairs. ftmd bckox vcrili uoo ifpz lhcvdj iucdi pjfnt mjrda hnjdnv