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

Dow SILASTIC LTC 9400-40 Silicone Rubber

Dow SILASTIC LTC 9400-40 is a platinum-cured liquid silicone rubber offering low compression set, excellent thermal stability (–65°C to 200°C), and outstanding flow for precision molding. Designed for medical, automotive, and electronics applications, it cures rapidly at room or elevated temperatures with minimal shrinkage and high biocompatibility per ISO 10993.
  • dow silastic ltc 9400 40 silicone rubber_8d851b06
  • dow silastic ltc 9400 40 silicone rubber_8d851b06

Features Of Dow SILASTIC LTC 9400-40 Silicone Rubber

  1. Low-temperature cure formulation enabling efficient processing at ambient to mild elevated temperatures.

  2. Excellent adhesion to diverse substrates including metals, plastics, and glass without primers.

  3. High elongation and flexibility with outstanding resistance to thermal cycling and aging.

  4. UL 94 V-0 rated for flame retardancy in demanding electrical and electronic applications.

  5. Non-corrosive chemistry suitable for sensitive electronic components and medical device assembly.

Typical Applications Of Dow SILASTIC LTC 9400-40 Silicone Rubber

  1. Sealing and potting of LED lighting modules and power supplies.

  2. Encapsulation of automotive sensors and control units exposed to thermal stress.

  3. Insulating gaskets and vibration-damping pads in consumer electronics housings.

  4. Adhesive bonding of touch panels and display assemblies in industrial HMIs.

  5. Conformal coating and protective encapsulation for PCBs in aerospace avionics.

Specifications Of Dow SILASTIC LTC 9400-40 Silicone Rubber

Chemical TypePlatinum-cured liquid silicone rubber (LSR)
Product FormTwo-part liquid system (Part A + Part B)
AppearanceTranslucent, low-viscosity liquid
Primary ApplicationsSealing, potting, bonding, and encapsulation
Key FeaturesLow-temperature cure, primerless adhesion, UL 94 V-0
BenefitsReduced energy consumption, simplified assembly, enhanced reliability
Cure Temperature Range25–120 °C (ambient to moderate heat)
Shore A Hardness (7 days, 23 °C)40 ± 3


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