Zeeospheres Ceramic Microsphere are unique gray-colored, fine particle size, high-strength microspheres. They are opaque to visible light, but transparent to UV light. These products are typically used to reduce VOC levels, increase filler loadings, improve hardness , and add burnish, scrub and abrasion resistance to a variety of coating formulations. Due to their low resin demand, high hardness and inert chemistry, these products have found untility in high solids, water reducible radiation - curbale and high durability coatings, powder coatings, and a wide range of premium perfomance coatings.