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

Dow DOWSIL PR-1205 Coat Silicone Elastomer

Dow DOWSIL PR-1205 Coat Silicone Elastomer is a two-part, platinum-cured liquid silicone rubber designed for precision coating and encapsulation. It offers excellent flexibility, thermal stability (–60°C to 200°C), low compression set, and strong adhesion to substrates. Ideal for medical devices, electronics protection, and soft-touch finishes. Meets ISO 10993 and USP Class VI requirements. Fast cure at room or elevated temperatures ensures high throughput and reliability.
  • dow dowsil pr 1205 coat silicone elastomer_b1f5d8e8
  • dow dowsil pr 1205 coat silicone elastomer_b1f5d8e8

Features Of Dow DOWSIL PR-1205 Coat Silicone Elastomer

  1. High-performance, two-part addition-cure silicone elastomer designed for precision coating and encapsulation.

  2. Excellent thermal stability with continuous service temperature range from –60 °C to 200 °C.

  3. Low compression set and outstanding elasticity retention after prolonged thermal aging.

  4. Good adhesion to common substrates including metals, plastics, and cured silicone surfaces without primer.

  5. UL 94 V-0 rated for flame resistance when formulated per specified thickness and cure conditions.

Typical Applications Of Dow DOWSIL PR-1205 Coat Silicone Elastomer

  1. Protective conformal coatings for automotive power electronics and battery management systems (BMS).

  2. Encapsulation of high-voltage sensors and LED modules in outdoor lighting and EV charging infrastructure.

  3. Dielectric coating for flexible printed circuits (FPCs) and hybrid microelectronics exposed to harsh environments.

  4. Sealing and potting of industrial control units requiring long-term reliability under thermal cycling.

Specifications Of Dow DOWSIL PR-1205 Coat Silicone Elastomer

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-component liquid system (Part A: base; Part B: catalyst)
AppearancePart A: translucent viscous liquid; Part B: translucent low-viscosity liquid
Mix Ratio by Weight10:1 (A:B)
Cure Schedule (Typical)20 min at 125 °C or 24 h at 25 °C
Shore A Hardness (7 days, 23 °C)40–45
Tensile Strength (ASTM D412)≥ 6.0 MPa
Elongation at Break (ASTM D412)≥ 250%


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *