Gelest® xPDMS 2-Part High Elongation Reprographic Silicone Elastomer (100:1 kit) (PP2-RG09)
Gelest® xPDMS is a flexible, translucent molding and encapsulation compound with significantly higher elongation than conventional silicones. Gelest® xPDMS also has a greater amount of self-sealing compared to conventional silicone RTVs, allowing for mechanical penetration of cannulae and optical fibers as well as electroactive interconnects.
Note: The properties reported are typical values and are intended as a guide for design and not intended for use in establishing specifications.
|Mixed ratio A:B||10:1|
|Viscosity, uncured mix||12,000-14,000||cSt|
|Viscosity, part A||12,000-14,000||cSt|
|Viscosity, part B||800-1,000||cSt|
|Volatiles (4h/150 °C)||≤ 0.1||wt %|
|Critical surface tension||23-24||mN/m|
|Contact angle, water||105-110||°|
|Elongation at tear||2,000||%|
Thoroughly mix Part A and Part B in a 100:1 ratio. Try to avoid introducing bubbles. For critical applications, de-air mix under vacuum for about 20 minutes. The pot-life is 24 hours at 25 °C. Avoid entrapping air during transfer and casting. Cure at 80 °C for 4 hours or at room temperature for 36 hours.