Foam-Rubber seal

With continuous usages the seals wear out. When the GRABO seal finally wears out, the lifting capacity diminishes. In this case you can replace the worn seal by hand within seconds. You can use the spare one supplied with the kit. Alternatively you can buy as many from any of the distributors or retailers. This patented high friction foam-rubber seal fits all GRABO models. Specifications: Black foam seal Material SBR rubber foam sponge Color Black L x W x H 11.5 x 6.9 x 0.7” (293 x 175 x 19 mm) Density 10.6 Lb/cft (170 kg/m^3) Hardness, Shore C 10_2 Tearing Pressure 1800 Psi (126 kg/cm^2) Compression to 25% size at 8.5 Psi (6000 kg/m^2) Water Absorption, % <=5 Shrinkage at 160F (70C) for 24 hrs, % <=20 Recommended Storage Temperature Room temperature Red seal Material Silicon Foam Color Red Density 40.5 Lb/cft (650 kg/m^3) Hardness, Shore C 55_5 Water Absorption, % <=4 Recommended Storage Temperature Room temperature