Premium fumed silica thickener designed for resin projects, epoxy applications, and marine composites. This 1-gallon container provides consistent viscosity control and improved workability for casting, layups, and structural repairs. Ideal for boat builders, DIY enthusiasts, and professionals seeking reliable material absorption and suspension properties. Reduces sagging in vertical applications and enhances resin flow characteristics. Essential for achieving professional-grade results in fiberglass reinforcement and custom fabrication work.