3M 7010328018 Bondo Fiberglass Resin 1 Pint

Product Description

The 3M 7010328018 is a high-strength polyester fiberglass resin used to repair and seal a wide range of damaged surfaces. This is the same class of resin used in boat manufacturing, making it a dependable choice for structural repairs where a strong, waterproof bond is required. The resin can be applied alone or in combination with fiberglass tape, cloth, or mat to restore surface integrity. Liquid hardener is included. Once applied, the cured material is sandable in less than 2 hours, allowing repairs to move forward without extended downtime. Compatible with gel coat, marine paints, and most standard topcoats.

This resin is suited for use on fiberglass boats, snowmobiles, personal watercraft, bathtubs, and showers. It also functions as a penetrating sealer on rotted or deteriorated wood and bonds to concrete and metal surfaces affected by rust-out. The 1-pint package size is appropriate for targeted repairs and patch work rather than large-scale laminate layup. Technicians working in marine service, restoration, and general trades will find it a practical single-component solution for mixed-substrate repair scenarios.

Key Features

• High-strength polyester resin — same formulation used in fiberglass boat construction
• Sandable in less than 2 hours after cure
• Waterproof bond suitable for wet-environment applications
• Compatible with all paints including gel coat and marine finishes
• Can be used alone or layered with fiberglass tape, cloth, or mat
• Seals rotted wood, concrete, and metal rust-outs in addition to fiberglass substrates
• Includes liquid hardener

Compatibility

Designed for use on fiberglass, wood, concrete, and metal surfaces. Compatible with gel coat and marine paints as a topcoat base after cure.

Installation Notes

Surface preparation is critical — remove loose material, rust, and contaminants before application. Mix resin and liquid hardener thoroughly according to the ratio specified on the product packaging before use. Work in a well-ventilated area and follow applicable safety data sheet guidance for respiratory and skin protection. Allow full cure before sanding or applying topcoat.

Technical Specifications

• Product Type: Polyester Fiberglass Resin
• Volume: 1 pint
• Weight: 1.58 pounds
• Includes: Liquid Hardener
• Cure / Sandable Time: Less than 2 hours
• Waterproof: Yes
• UPC: 00076308004019

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010328018