Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker ELASTOSIL RT 707 Silicone Rubber

Wacker ELASTOSIL® RT 707 is a two-component, addition-curing liquid silicone rubber offering excellent flowability, low viscosity, and outstanding thermal stability. Ideal for precision casting, encapsulation, and medical device molding, it delivers high tear strength, low compression set, and biocompatibility per ISO 10993. Fast curing at room or elevated temperatures ensures high productivity in industrial applications.
  • wacker elastosil rt 707 silicone rubber_d8cb84ec
  • wacker elastosil rt 707 silicone rubber_d8cb84ec

Features Of Wacker ELASTOSIL RT 707 Silicone Rubber

  1. Two-component, addition-cure liquid silicone rubber with excellent flowability and low viscosity for precise mold filling.

  2. High tear strength and outstanding elongation at break, ensuring durability in dynamic sealing and flexible part applications.

  3. Excellent thermal stability with continuous service temperature range from –60 °C to +180 °C.

  4. Low compression set and superior resistance to aging, ozone, and UV exposure.

  5. Biocompatibility compliant with ISO 10993–5 and USP Class VI (when fully cured), suitable for medical-grade components.

Typical Applications Of Wacker ELASTOSIL RT 707 Silicone Rubber

  1. Medical devices including tubing, seals, gaskets, and implantable component housings.

  2. Automotive sensors, connectors, and vibration-damping mounts requiring long-term reliability.

  3. Consumer electronics encapsulation and protective overmolding for buttons, switches, and wearables.

  4. Industrial sealing systems for pumps, valves, and fluid-handling equipment exposed to harsh environments.

  5. Food-contact parts such as gaskets and seals meeting FDA 21 CFR §177.2600 requirements (when cured).

Specifications Of Wacker ELASTOSIL RT 707 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber
Product FormTwo-component (Part A: base; Part B: catalyst)
Appearance (Part A)Translucent, low-viscosity liquid
Appearance (Part B)Translucent, low-viscosity liquid
Mixing Ratio (A:B by weight)10:1
Cure ModeHeat-cure (e.g., 150 °C for 5 minutes) or room-temperature post-cure
Shore A Hardness (cured)70 ± 3
Primary ApplicationsMedical, automotive, electronics, food processing, industrial sealing


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