FOAM BLAST PDR10 is a powder 10% silicone-based defoamer designed to be used in systems where a powder is better suitable than liquids. Avoiding introduction of water as one of the components in formulations is one of the benefits of a powder defoamer. All components are in compliance with FDA regulation 21 CFR 173.340 and it is limited by that regulation to a maximum usage of 100 ppm for most uses. Consult this regulation for situations where the use limitation may be different. All components of this product are manufactured under Good Manufacturing Practices. Consideration for other FDA permitted uses would require further evaluation.