3M Short Strand Fiberglass Filler, available in a 212-ounce container, engineered for robust and durable repairs across a variety of surfaces. This heavy-duty filler combines short strand fiberglass reinforcements within a high-quality resin, delivering exceptional strength and flexibility for patching, rebuilding, and shaping both metal and fiberglass substrates. Its spreadable, easy-to-mix formula ensures smooth application and excellent adhesion, making it ideal for automotive, marine, and household repair projects. The filler sands easily to a professional-grade finish and is compatible with most paints and coatings once cured. Trusted for its reliability, the 3M Short Strand Fiberglass Filler is a go-to choice for professionals and DIYers seeking a strong, lasting repair solution.