ClosedCell Rubber Pipe Insulation, Unslit, Length 1.83, Temp. Range -50 ... ID. 6 to 89mm, thickness 6 to 30m Closed Cell Rubber Pipe Insulation, Unslit, Length 1.83, Temp. Range -50 to ... that Hengbao suggested. For the pipe applications, the pipe to be insulated and the rubber surface should fit properly and no ... be protected against distruption and rupture. Closed Cell Rubber Pipe lnsulation black color