The aerosol - mr – 303 is known for meeting fda regulations and contains only 3% of silicone. The aerosol - mr – 303 is non-corrosive and non-staining that works perfectly from 40°f to 550°f. suitable for : plastic injection molderswaxcompression molderscandle holdersrubberlost wax processt.f.eextrudersblow moldersceramicsinvestment castingsfoundries