3M 20129 Bondo Fiberglass Mat - 8 Sq. Ft.

Slightly thicker than fiberglass cloth, Bondo Fiberglass Mat is recommended when additional strength is required on more severe repairs like larger holes and cracks. When used with Bondo Fiberglass Resin PN 401, 402, 404 (sold separately), repairs are 100% waterproof, making the products ideal for automobile, tub, shower, sink, pool, hot tub, boat repair and more. This product can also be used on additional surfaces such as wood, concrete and metal to provide extremely strong, durable and waterproof repairs.

Fiberglass mat offers additional thickness to provide structural reinforcement for stronger repairs 0.30 mm mat can be hand torn for quick backside repairs Versatile product works for repairing automobiles, boats, tubs, showers, sinks, pools, hot tubs and more Fiberglass mat repairs multiple surfaces including concrete, wood, fiberglass, metal and more Use during the Fill stage of the 3M Body Repair System