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The 3M 7100143341 is a 4-inch plastic spreader designed for applying body fillers, fiberglass fillers, finishing putties, and resins during auto body and surface repair work. The spreader features a sharp, flexible blade that allows for controlled, even distribution of material across curved and flat surfaces. Its durable construction resists damage during use, and cured filler releases cleanly from the surface, making cleanup fast between applications. This tool is commonly used by auto body technicians, composite fabricators, and finishing tradespeople working with filler and resin systems.
This spreader is suited for residential and commercial bodywork, composite repair, and surface finishing applications. It works with a wide range of body and fiberglass fillers, finishing putties, and resin products. The 4-inch width makes it practical for smaller panel sections, detail work, and tight areas where a larger spreader would be difficult to control. Technicians reach for this size when working on contoured surfaces or finishing edges.
Designed for use with body fillers, fiberglass fillers, finishing putties, and resin systems commonly used in auto body and composite repair applications.
This spreader is a hand tool requiring no power or special equipment. Ensure the surface is properly prepped before applying filler. Allow filler or resin to fully cure before attempting to flex and release the spreader. Clean the spreader promptly after use to maintain the blade edge for future applications.
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