3M 7100315461 Bondo Original Filler 2-part Compound

Product Description

The 3M 7100315461 is a two-part polyester body filler compound sold under the Bondo Original Filler line. It mixes with a hardener to produce a workable paste that fills dents, dings, and surface voids in metal, wood, and fiberglass substrates. Once cured, the material sands and shapes easily for a smooth, paintable surface. This product is sold in individual units and weighs approximately 2.19 pounds. Body shop technicians and experienced DIYers apply it during collision repair and surface restoration work where a durable, sandable fill is required before primer and topcoat application.

This filler is suited for automotive bodywork, marine fiberglass repair, and general metal surface restoration. It is applied in moderate-thickness layers, allowed to cure, then block-sanded to the surrounding contour. The formula is designed for situations where the substrate has structural integrity but requires cosmetic leveling before finishing. It is sold in a minimum quantity of 6 units per order.

Key Features

• Two-part compound system — filler base mixes with a separate hardener for controlled working time
• Sands easily after cure for smooth, contoured surface preparation
• Compatible with metal, fiberglass, and wood substrates
• Lightweight unit weight of approximately 2.19 pounds
• Original Bondo formula with established field history in body repair applications

Compatibility

Designed as a general-purpose two-part body filler for automotive, marine, and woodworking surface repair applications where a sandable, paintable fill compound is required.

Installation Notes

Application is performed by body shop technicians or experienced trade users following standard surface preparation procedures. The substrate must be clean, dry, and free of rust, grease, and loose material before filler is applied. Mix only the amount of compound needed per session, as pot life is limited once hardener is introduced. Work in a well-ventilated area and follow applicable safety data sheet guidance for respiratory and skin protection.

Technical Specifications

• Compound Type: 2-Part Polyester Body Filler
• Weight: 2.19 pounds
• UPC: 00076308002626
• Unit of Measure: Each
• Minimum Order Quantity: 6

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100315461