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RTV-2 Silicones addition curing

Pottings

The key characteristic of addition curing is a platinum-based catalyst complex. This results in – depending on the product in the A or B component – a curing that does not release any by-products and therefore does not shrink. The curing rate can be greatly accelerated by supplying heat after processing.

Advantages:
The reaction can be accelerated by raising the temperature
- Irreversible crosslinking
- There is no weight loss during the curing
- There is a very low degree of shrinkage (< 0.1 %)
- No by-products are released
- For types classified as self-adhesive, there is very good adhesion on a wide range of substrates.

Further information

Product Properties Tensile strength Elongation at break Mixing ratio Hardness Color Viscosity Density
  [N/mm²] [%] A : B [Shore A] [mPa s @23°C] [g/cm³]
ELASTOSIL® RT 601 A/B Low-viscosity grout with very good optical properties 6.0 100 9 : 1 45 highly transparent 3.500
ELASTOSIL® RT 602 A/B Universal potting with good temperature stability 1.5 130 9 : 1 30 light gray 3.500
ELASTOSIL® RT 604 A/B Very low viscosity grout n.a. n.a. 9 : 1 25 highly transparent 800
ELASTOSIL® RT 607 A/B Grout with excellent temperature stability and increased thermal conductivity 3.0 100 9 :1 55 Shore A reddish brown 12.000
ELASTOSIL® RT 622 A/B Universal sealing compound with very good mechanical properties 6.5 550 9 : 1 27 Shore A reddish brown 12.000
ELASTOSIL® RT 625 A/B any colorize, universal potting with very good mechanical properties 6.5 600 9 : 1 25 Shore A translucent 12.000
ELASTOSIL® RT 628 A/B Universal sealing compound with high hardness 3.5 230 9 : 1 50 Shore A gray 50.000
ELASTOSIL® RT 646 A/B Universal sealing compound with high hardness 5.0 280 10 : 1 53 Shore A beige 70.000
ELASTOSIL® RT 675 A/B Potting compound with high thermal conductivity 2.0 20 1 : 1 80 Shore A reddish brown 50.000
ELASTOSIL® RT 745 "S" A/B Potting, self-adhesive, low viscosity, low hardness n.a. n.a. 1 : 1 37 Shore 00 brownish - translucent 1.000 0.960
ELASTOSIL® RT 745 A/B Self-adhesive sealing compound with low hardness. Cross-linking at elevated temperatures. n.a. n.a. `1 : 1 15 Shore A brownish - translucent 1.000 0.960
ELASTOSIL® SC 870 A/B Thixotropic silicone foam for compressible seals. 3.5 100 1 : 1 10 Shore A black 40.000
WACKER SILGEL® 612 A/B Very soft silicone gel for potting applications in the electronics sector. Mixing ratio can be varied. n.a. n.a. 1 : 1 n.a. highly transparent 1.000
WACKER SILGEL® 613 Very soft silicone gel for potting applications in the electronics sector. Suggested B component is ELASTOSIL CAT PT. n.a. n.a. 10 : 1 n.a. highly transparent 200
WACKER

As a wholly owned subsidiary of Wacker Chemie AG, DRAWIN supplies the right silicone product at the right time, to the right place and in the right configuration.

Products

Contact

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