| Self-adhesive liquid silicone rubbers of the ELASTOSIL® LR 3072 series are paste-like, easily pigmentable two-component compounds with extremely short curing times. Shortly after the curing process a thin oil film with lubricating properties forms on the surface of the vulcanizates. Special features: ELASTOSIL® LR 3072 series are primerless, self-bonding grades that adhere to various plastic substrates (e. g. PA, PBT) and metals, but not in the mold. The bonding is improved by an ageing-process (e. g. one hour at 100 °C) or by a longer storing at room temperature. Because of the individual surface properties adhesion to the substrate must be tested before production. The vulcanizates are noted for good mechanical and electrical properties. Application: ELASTOSIL® LR 3072 series are particularly suitable for the economical production of large series of overmolded parts (thermoplastic/elastomer), even in a comolding process (shuttle mold) under standard conditions, without any special treatment of the mold surface. Information provided by Wacker Chemie AG. |
