CALSEC® FE is a selected grade of micronized calcium hydroxide [Ca(OH)2] to be used in Fluoro elastomers cross linking. Recommended level dosage is 6 phr at the end of the mixing cycle. CALSEC® FE is regulated under the provisions of FDA 21 CFR 184.1(b) (1) as being Generally Recognized As Safe (GRAS) and may be used in Fluoro elastomer compounds designed for food contact. CALSEC® FE is available in pre-weighed sachets with different melting point.