Cabot Cab-O-Sil M5 Fumed Silica Select Weight : 100 gm 500 gm 10 Pound SKU: Fumed-Silica PricingQuantityPrice $19.50 to $495.00 Quantity -+ Add to Cart DescriptionThe versatile M5 grade of Cab-O-Sil fumed silica. Synthetic amorphous silicone dioxide. Crystalline free. Commonly used as a bulking agent or as a matting agent in finishes. Chemical Formula: SiO2.Technical InformationMSDSProduct Information