... ,it is insulating . SepioliteDescription: Sepiolite is silicate clay mineral in fibre form which is rich in magnesium, and it is also ... to people. its melting point is 1500-1700, so it’s heat resistant. It is low in contraction, but high in ... , Second, Third Grade≤4≤85Sepiolite Powder100mesh, 200mesh, 300mesh, 400mesh Sepiolite fibre