Compressed Asbestos Fibre is regarded as easy to use and very tolerant of abuse, for which it was recognized as very for givings it is used to seals almost all applications grades available with us, W1, W2, W3, B/S, O/1, O/2. A/1 metallic and non-metallic materials Material – Compressed Asbestos, Jointing Sheets (CAF) Non Asbestos, Rubber and other jointing Sheets, Heat Exchangers, Pressure Vessels Stansard : ANSI B16.21 and as per Customer’s Drawing and specification