ELASTOSIL® RT 629 A/B
Room Temperature Curing Silicone Rubber (RTV-2). Castable, addition-curing, two-component silicone rubber that vulcanizes at room temperature.
Main application: making antistatic pressure pads also known as printing tampons.
Properties
• Antistatic finish
• Very good fluidity
• High reactivity for fast demoulding even when large amounts of silicone fluid are added
• Fast and shrink-free curing at room temperature, which can be significantly accelerated by the application of heat
• Average hardness (Shore A approx. 31)
• Excellent mechanical properties
Specific features
• Addition curing
• Antistatic
• Fast curing at room temperature
• Liquid
• Low viscosity
• No chemical shrinkage
• Two-component
Technical data
Viscosity @ 23oC: 8,000 mPa.s
Mixing ratio A:B by weight: 10: 1
Processing time @ 23oC: 40 minutes
Curing time: 3 hours
Color: turquoise
Density @ 23oC in g/cm3: 1.13
Tear strength in N/mm: 25
Hardness Shore A: 31
Tensile strength in N/mm²: 6
Elongation at break in %: 500
A special feature of ELASTOSIL® RT 629 A/B is that it contains an antistatic additive for rapid dissipation of static charge that
has accumulated on the surface of the pad.
Processing
Important note: The platinum catalyst is located in component B.
Important: A and B components may only be used together if they have the same
batch number.
Dilution tables: The following tables show the hardness of ELASTOSIL® RT
629 A/B depending on the added quantity of Wacker Silicone Fluid AK 35 for hardness tester types Shore A and Shore 00.
ELASTOSIL-RT-629-AB-en-2022.06.28.pdf
