Struktol® Aktivator 73A

Mixture of zinc salts of aromatic and aliphatic carboxylic acids formulated to activate sulfur vulcanization of diene rubbers, especially natural rubber and that can partially or totally replace conventional activators based on fatty acids such as stearic acid, zinc stearate and zinc-2-ethylhexanoate. It prolongs the reversal time, increases the module, decreases heat generation due to dynamic loads, reduces the compression set at high temperatures, improves properties at high curing temperatures and reduces viscosity in the high shear range. It can also be used as a natural rubber peptizant that improves mixing, extrusion and molding.