Features: Provide low surface roughness silicone elastomers with high definition in thin sections with moderate viscosity and extended pot-life for accurate reprographic and prototype transfer technologies. Systems are vinyl-addition (platinum) cure.
Applications:
- microcontact printing- provides stamp and transfer detail to dimensions of 1 micron
- design transfer – high definition allows accurate image transfer from prototypes
Gelest RG™ 01 2-part reprographic silicone elastomer, supplied as 10:1 kit
Description: Gelest RG™ 01 is a flexible, clear molding and encapsulation compound. The moderate viscosity of the catalyzed mix and long pot-life at room temperature make this extremely useful in microcontact printing, prototype and small production run applications.
Cured Properties:
- refractive index: 1.43
- dielectric constant 2.7
- critical surface tension: 23-24 dynes/cm
- tensile strength: 800-1000 psi
- elongation: 80-100%
- durometer, Shore A: 30-40
- tear strength: 10-15 pli
- specific gravity: 1.04
Uncured Properties:
- viscosity (10:1) catalyzed: 3500-4500 cSt
- viscosity Part A (base): 5000-5500 cSt
- viscosity Part B (crosslinker): 50-75 cSt
Application Methods:
Thoroughly mix Part A with Part B in a 10:1 ratio. Try to avoid introducing bubbles. For critical applications, de-air mix under vacuum for about 20 minutes. The pot-life is 12 hours at 25 °C. Avoid entrapping air. Cure at 55 °C for 4 hours or at room temperature over 36 hours.
Gelest RG™ 02 2-part oleophilic reprographic silicone elastomer, supplied as 10:1 kit
Description: Gelest RG™ 02 is a clear to translucent molding and encapsulation compound with greater adsorption of hydrocarbons than conventional silicones making it able to transfer a wider range of chemicals for self-assembly techniques.
Cured Properties:
- refractive index: 1.43
- dielectric constant 2.6
- critical surface tension: 27-29 dynes/cm
- tensile strength: 600-800psi
- elongation: 80-100%
- durometer, Shore A: 25-35
- tear strength: 10-12 pli
- specific gravity: 1.04
Uncured Properties:
- viscosity (10:1) catalyzed: 3000-4000 cSt
- viscosity Part A (base): 5000-5500 cSt
- viscosity Part B (crosslinker): 75-125 cSt
Application Methods:
Thoroughly mix Part A with Part B in a 10:1 ratio. Try to avoid introducing bubbles. For critical applications, de-air mix under vacuum for about 20 minutes. The pot-life is 12 hours at 25 °C. Pot-life may be extended by storing at 5 °C. Apply to substrate. Avoid entrapping air. Cure at 55 °C for 4 hours or at room temperature over 36 hours.