ELASTOSIL® LR 3873/30 A/B US
Self-adhesive liquid silicone rubbers of the ELASTOSIL® LR 3873 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. The vulcanizates are opaque and have good mechanical and electrical properties.
Properties
ELASTOSIL® LR 3873 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 a subsequent heat treatment 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. For further information on tested material combinations please refer to the corresponding adhesion tables which are available upon request from the responsible sales manager.
Specific features of ELASTOSIL® LR 3873/30 A/B US
- Oil bleeding
- Self-adhesive
Data sheets
The ELASTOSIL® LR 3873 series is particularly suitable for the economical production of overmolded parts (thermoplastic/elastomer) or comolding (shuttle mold) under standard conditions without any special treatment of the mold surface. It is increasingly being used to produce cable and connector seals for the automotive industry where a moderate degree of lubrication is needed. As an oil film forms, seals can be fitted easily and fully-automatically, even when tolerances are narrow.
Parts made from ELASTOSIL® LR 3873 can generally be used for technical applications without post-curing, but do not comply with regulations concerning use in the pharmaceutical and food industry.
Packaging
This product is available in 20 kg pail and 200 kg drum kits.
Storage
Once opened, containers should always be resealed after use to prevent the platinum catalyst from being poisoned by amines, sulphur or phosphorus compounds. The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Sales and support
Ann Arbor, MI 48108
United States
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