Details o Use With Bondo Fiberglass Resin For Strong Waterproof Repairs o Use During The Fill Stage Of The 3M Body Repair System o Use To Repair Holes Or Cracks In Fiberglass, Wood And Metal o Cloth Pattern Provides Reinforcement For A Strong Repair o Waterproof And Paintable o Versatile Product Works For Repairing Automobiles, Boats, Tubs, Showers, Sinks, Pools, Hot Tubs And More o Bondo Fiberglass Cloth Is Thinner And More Flexible Than Bondo Fiberglass Mat To Provide A Smoother Finish o Cloth Will Not Rust Or Rot o Does Not Expand Or Shrink With Temperature Change o 0.20 Mm Cloth Is Generally Cut To Fit With Scissors For Uniform Repairs When fixing holes, cracks or gouges, use Bondo Fiberglass Cloth to provide strength and extra reinforcement.