... non-asbestos sheet is made from synthetic fiber, natural rubber, filling material and dye, compressed and calendered under high temperature ... -white, etc.StylesNCAF Gasket 1400 : cut from non-asbestos rubber sheets.Temperature : 150oC, 200oC, 250oC, 300oC, 350oC, 400oC ... Resistant NCAF Gasket 1400OR: cut from Oil resistant non-asbestos rubber sheets.Temperature : 150oC, 200oC, 250oC, 300oC, 350oC, ...