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Master Bond adhesives
Wacker Elastosil® LR 3070/40 A/B Liquid Silicone Rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: Self-adhesive liquid silicone rubbers of the ELASTOSIL® LR 3070 series are paste-like, easily pigmentable two-component compounds with extremely short curing times.

ELASTOSIL® LR 3070 series are primerless, selfbonding 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 each substrate must be tested before mass production. The vulcanizates are noted for good mechanical and electrical properties.

Application: ELASTOSIL® LR 3070 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. Parts made from ELASTOSIL® LR 3070 can generally be used for technical applications without post-curing, but do not comply with regulations concerning use in the pharmaceutical and food industry.

Information provided by Wacker Chemie AG.

Vendors:
Available Properties
  • Density, ISO 1183-1 A
  • Viscosity, DIN 53019
  • Viscosity, DIN 53019
  • Hardness, Shore A, DIN 53505
  • Tensile Strength at Break, DIN 53504 S 1
  • Elongation at Break, DIN 53504 S 1
  • Tear Strength, ASTM 624 B
  • Compression Set, DIN ISO 815-B
  • Compression Set, DIN ISO 815-B
  • Maximum Service Temperature, Air, with heat stabilizer
  • Minimum Service Temperature, Air
  • Transmission, Visible, "Transparent" but manufacturer does not quantify.
  • Cure Time, in press
  
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Category Notes
Plastic

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