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ELASTOSIL® LR 3675/30 A/B

Self-adhesive liquid silicone rubbers of the ELASTOSIL® LR 3675 series are paste-like, easily pigmentable two-component compounds with short curing times and low coefficient of friction. In comparison with ELASTOSIL ® LR 3070 grades the coefficient of friction is reduced by 50 - 70 %.

 

The vulcanizates are noted for their excellent mechanical and electrical properties. Due to the low compression set, there is no need to post-cure finished parts.



Properties

ELASTOSIL® LR 3675 series are primerless, self-bonding grades that adhere to various plastic substrates (e. g. PA, PBT) and metals. 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. The cured rubbers show a lower coefficient of friction without  exuding oil as happens in oil-bleeding silicone elastomers.

Specific features of ELASTOSIL® LR 3675/30 A/B

  • Specific Features: Low coefficient of friction
  • Specific Features: Self-adhesive
  • Vulcanizate: Self-adhesive

Disclaimer

All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product's fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties' rights.

Selfbonding ELASTOSIL® LR 3675 grades adhere to various plastic substrates (e. g. PA, PBT) and metals, but not to the mold. Because of the individual surface properties adhesion to the substrate must be tested before production. ELASTOSIL® LR 3675 can generally be used for technical applications without post-curing, e.g. connector seals in the automotive industry.

The A and B components are delivered ready to use in 20 and 200 litre drums. With adequate metering equipment, they can be pumped directly from the original containers into the injection molding machine and mixed by a static mixer. The mixing ratio is 1 : 1. At room temperature, mixtures of A and B components have a pot life of at least three days.

 

Start-up of new molds should be supported by use of ELASTOSIL® AUX Mold Release Agent 32.

 

For detailed information please refer to the latest edition of our brochure "SOLID AND LIQUID SILICONE RUBBER - MATERIAL AND PROCESSING GUIDELINES".

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

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)
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