Dual-component filler GLASS MICROSHERES
System Three Resins
These bulking agents are hollow, clear microscopic spheres that make a low-cost, low-density filler. Added to epoxy resin and hardener mix, they make a good, heat-resistant, light-weight fairing compound with good compressive strength. Mixture can be blended with a small amount of Silica Thickener to prevent sagging. Not recommended for gluing.
