... Unslit, Length 1.83, Temp. Range -50 to 110 C, Color Black, ID. 6 to 89mm, thickness 6 to 30m Closed ... Unslit, Length 1.83, Temp. Range -50 to 110 C, Color Black, ID. 6 to 89mm, thickness 6 to 30m HengBao ... gases. The sheets are adhered to the duct surface by using a special adhesive that Hengbao suggested. For the pipe ... distruption and rupture. Closed Cell Rubber Pipe lnsulation black color