3M 7000120013 Fiberglass Mat Repair Cloth

Product Description

The 3M 7000120013 is a fiberglass mat cloth designed for structural repair and reinforcement work across a wide range of surfaces. Sold as an individual unit, this mat pairs with polyester fiberglass resin to create durable, rigid repairs that resist rust and rot. Technicians and skilled tradespeople use it to rebuild and reinforce damaged sections on metal, fiberglass, and wood substrates. At 0.53 pounds, the mat is lightweight and easy to handle during layup work, making it practical for both bench repairs and field service applications.

This fiberglass mat is suited for repair work on automotive panels, marine hulls, camper shells, truck beds, snowmobiles, tanks, and similar structures where a strong, corrosion-resistant patch is required. It performs in both shop and field environments where surface preparation and resin application are part of a standard repair workflow. Trade professionals and experienced DIYers working in auto body, marine service, or general fabrication will find it compatible with their existing resin-based repair processes.

Key Features

• Compatible with polyester fiberglass resin for structural laminate repairs
• Resists rust and rot after cure, extending repair service life
• Works on metal, fiberglass, and wood surfaces
• Lightweight construction at 0.53 pounds for easy handling and layup
• Suitable for a broad range of applications including automotive, marine, and industrial repairs

Compatibility

Designed for use with polyester fiberglass resin in surface repair applications on metal, fiberglass, and wood substrates including cars, boats, campers, trucks, snowmobiles, and tanks.

Installation Notes

Surface preparation is critical before applying fiberglass mat — clean, sand, and degrease the repair area thoroughly before laying the cloth. Work in a well-ventilated area when mixing and applying polyester resin, and follow all resin manufacturer safety guidelines including appropriate PPE for skin and eye protection. Allow full resin cure before sanding or loading the repaired area. Dispose of resin-saturated materials in accordance with local regulations.

Technical Specifications

• Weight: 0.53 pounds
• Unit of Measure: Each
• UPC: 00076308004880

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000120013