Composition Materials Co. - Plastic Blast Media, Walnut Shells, Abrasive Blasting, A pioneer of green solutions for industries worldwide since 1923, with over 200 products, we manufacture and supply premium Abrasive Blasting Media, Fillers & Extenders, Non-Skid Abrasives, Deflashing Media and UV Masking Resins. For 90 years, Composition Materials is dedicated to supplying industry with products from renewable, organic, recycled and sustainable sources.