Toughened Silicone Gels

DOWSIL™ SYLGARD™

Product description

DOW Silicones (formerly Dow Corning) delivers a wide variety of silicone-based polymers for diverse solutions in electric, electronic and energy application cases. DOWSIL™ Silicone gels are a special class of encapsulants that cure to an extremely soft material. Gels cure in place to form cushioning, self-healing, resilient materials. Cured silicone gels retain much of the stress relief and self-healing qualities of a liquid while providing the dimensional stability of an elastomer. Typically, gels are used to protect circuits from the harmful effects of moisture and other contaminants and provide electrical insulation for high voltages. Another key characteristic of most gels is a naturally tacky surface after cure. This natural adhesion allows gels to gain physical adhesion to most common surfaces without the need for primers. The tacky nature also results in the unique ability to re-heal if the cured gel has been torn or cut. The ability to re-heal permits the use of test probes directly through the gel for circuit testing.

DOWSIL™ toughened silicone gels are used for sealing and protecting (by coating, encapsulating or potting) various electronic devices, especially those requiring stronger adhesion or improved dimensional stability.

ProductViscosity [mPas]Hardness [Sh00]Cure time (Gel time)  
DOWSIL™ 3-4207 Dielectric Tough Gel4106010 min @50 °C, 3 min @100 °C (7 min) 
DOWSIL™ 3-4222 Dielectric Firm Gel340352 min @100 °C, 1 min @125 °C (13 min) 
DOWSIL™ 3-4241 Dielectric Tough Gel410602 min @125 °C (> 1 h Pot Life) 
DOWSIL™ EG-3896 Gel520220g30 min @70 °C, 5 min @150 °C (> 4 h Pot Life) 

Supplier

DOW™

Tradename(s)

DOWSIL™ SYLGARD™

Country availability

Austria, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Estonia, Germany, Latvia, Lithuania, Macedonia, Montenegro, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, Switzerland, Ukraine

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contact

Contact person

Dr. Johannes Martin

Dr. Johannes Martin

Product Manager Performance Products

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