3M Company 404 Fiberglass Resin with Hardener 1 Gallon

Product Description

The 3M COMPANY 404 is a fiberglass resin sold with hardener in a 1-gallon container. It is designed for laminating and repairing fiberglass surfaces, bonding glass fiber reinforcements, and restoring structural integrity to damaged fiberglass assemblies. The kit includes how-to directions, making it practical for field repairs as well as shop work. At 42 pounds per unit, this is a full-production-volume package suited for technicians handling large-area repairs or recurring fiberglass work in marine, pool, or construction applications.

This product is commonly used in pool and spa repair, marine hull patching, and general fiberglass fabrication. It is appropriate for both residential and light commercial settings. Technicians apply it when bonding fiberglass mat or woven roving to a substrate, or when rebuilding sections of fiberglass panels, enclosures, or pool surfaces. The included hardener eliminates the need for separately sourcing a catalyst, simplifying staging on the job site.

Key Features

• Includes hardener catalyst — no separate purchase required
• 1-gallon container provides sufficient volume for large-area lamination or repair work
• Packaged with how-to directions for consistent mixing and application
• Suitable for fiberglass mat, woven roving, and chopped strand applications
• Sold in case quantity of 4 units per package

Compatibility

Designed for use with standard fiberglass reinforcement materials including mat and woven roving in pool, marine, and general construction repair applications.

Installation Notes

Fiberglass resin work should be performed by qualified technicians in well-ventilated areas, as resin vapors are hazardous. Wear appropriate PPE including gloves, eye protection, and a respirator rated for organic vapors before handling. Follow the included mixing ratio instructions precisely — improper catalyst ratios will result in incomplete cure or exothermic runaway. Dispose of unused mixed resin according to local hazardous waste regulations.

Technical Specifications

• Container Size: 1 gallon
• Weight: 42 pounds
• Includes: Hardener, how-to directions
• Unit of Measure: EA
• Package Quantity: 4

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: 404