4 Gallons Soy-Based Non-Toxic Adhesive and Mastic Remover from Natural Soy Products Case of 4 gallons of Natural Soy Products biodegradeable natural cleaner and adhesive solvent. Effectively and safely cleans residue from labels, stickers, decals, grease, crayons, shoe polish, floor mastic and asbestos-based mastic. Natural Soy Products Adhesive and Mastic Remover is a n atural soy based, non-toxic cleaner that can remove adhesives and mastic from almost any surface. Use to refill 22 oz spray bottles or use your own bottles. The bio based content of this adhesive solvent and mastic remover is 61% as tested by Iowa State University using conventional radiocarbon analytical methods. Natural Soy Products Soy Clean Adhesive Remover and Mastic Remover Product Details 100% all natural ingredients Soy based formula Environmentally friendly Non-toxic No caustic fumes Biodegradable Non flammable Non abrasive Made in Brooklyn, Iowa, USA. This item ships from a separate warehouse and may require extra time for delivery.