Closed-cell, extruded foam polyethylene cord used as a support for elastomer sealants to gauge the correct size of flexible joints. Supplied in rolls in various lengths according to the diameter of the foam. TECHNICAL DATA: Density: 40 kg/m³. Diameters and packaging: Ø 6 mm, boxes of 550 m Ø 10 mm, boxes of 550 m Ø 15 mm, boxes of 550 m Ø 20 mm, boxes of 350 m Ø 25 mm, boxes of 200 m Ø 30 mm, boxes of 160 m Ø 40 mm, boxes of 270 m