Shrinkage

Although LSR does not shrink in the mold, they often shrink by 2.5%-3% after demoulding and cooling. How much shrinkage depends to a certain extent on the formula of the rubber compound. However, from a mold perspective, shrinkage may be affected by several factors, including the temperature of the mold, the temperature of the rubber material when it is demoulded, as well as the pressure in the mold cavity and subsequent compression of the rubber material.