Multifunctional processing promoters are made from a combination of peptizing agents and selected dispersants or lubricants serving as a substrate. These multifunctional processing promoters are normally added at the initial mixing stage and used at temperatures of 80 – 120 °C to masticate natural and synthetic rubbers.
Special applications include tire compounds, molded and injection-molded products of all kinds and conveyor belts. When zinc soaps are used as substrates, these multifunctional processing promoters also act as dispersants and lubricants.
Aktiplast® 8 merits a special mention. It is specifically geared to bonding compounds and does not contain any zinc soap because this could have a negative effect on the bonding properties.