3M Bondo Fiberglass Mat is a versatile repair material for patching and reinforcing surfaces including metal, fiberglass, and wood. Thinner and more flexible than standard fiberglass cloth, it conforms easily to curved and irregular surfaces for a smoother repair. Use with polyester resin (sold separately) to create strong, permanent repairs.

• Repairs metal, fiberglass, wood, and other surfaces
• Thinner and more flexible for easier application on curves
• Ideal for automobiles, boats, tubs, showers, sinks, pools, and hot tubs
• Will not expand or shrink with temperature changes
• Will not rust or rot
• 8 square feet of fiberglass mat