3M 7000045749 Lightweight Polyester Body Filler 1 Qt

Product Description

The 3M 7000045749 is a lightweight two-component polyester body filler designed for filling dents, gouges, and cosmetic surface imperfections in automotive and collision repair applications. Mixed with a hardener, it cures to a tack-free state in 15 to 20 minutes, allowing repair work to proceed on a predictable schedule. The vacuum-processed formulation minimizes pinholing during application, which reduces rework time. The filler has a creamy, smooth consistency that spreads evenly across repair surfaces and resists loading sandpaper, meaning less abrasive material is consumed per job. Autobody technicians and collision repair professionals are the primary installers of this product.

This filler is suited for both shop and production environments where reliable surface preparation is required ahead of priming and painting. It adheres to steel, aluminum, SMC, and fiberglass panels, making it applicable across a wide range of vehicle body substrates. The product is designed for use with an air-operated dispenser for consistent mix ratios and controlled application. Sold in a 1-quart unit, it is appropriate for single-panel repairs or targeted spot work in a professional collision or refinishing shop.

Key Features

• Cures to a tack-free state in 15 to 20 minutes for efficient shop workflow
• Vacuum-processed to minimize pinholing and reduce surface defects
• Creamy texture spreads smoothly for even coverage across repair areas
• Resists sandpaper loading, reducing abrasive consumption during finishing
• Compatible with steel, aluminum, SMC, and fiberglass panel substrates
• Designed for use with an air-operated dispenser for consistent application

Compatibility

Designed for use on steel, aluminum, SMC, and fiberglass automotive body panels. Intended for use with an air-operated dispensing system.

Installation Notes

This product is installed by licensed autobody or collision repair technicians in professional shop settings. Before application, the substrate must be properly cleaned, degreased, and sanded to bare material according to the repair procedure. Follow the manufacturer mixing ratio instructions when combining filler with hardener. Allow full cure before block sanding, priming, or applying topcoat.

Technical Specifications

• Product Type: Two-component polyester body filler
• Container Size: 1 quart
• Tack-Free Cure Time: 15 to 20 minutes
• Compatible Substrates: Steel, aluminum, SMC, fiberglass
• Application Method: Air-operated dispenser
• Weight: 2.42 pounds
• UPC: 00051131058002

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000045749