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ELASTOSIL RT 775
RTV-2 silicone thermal barrier | Wacker
ELASTOSIL RT 775
Product description:
ELASTOSIL® RT 775 by Wacker is a non-slump, condensation curing RTV-2 silicone. When processed with a curing agent of the WACKER® catalyst T 77 series, a self bonding and durable silicone rubber is formed. Cured ELASTOSIL® RT 775 shows long-term stability against weathering, moisture and UV light. Under extreme heat exposure ELASTOSIL® RT 775 becomes a solid ceramic that resists as a thermal barrier over a long period of time. For example: thermal propagation of an EV battery module.
Properties:
Uncured:
- Non-slump paste
- Medium to fast curing at room temperature
Cured:
- To be cured with WACKER catalyst T 77 or WACKER catalyst T 77 PLUS (contact WACKER for further curing data)
- Medium hardness
- Primerless adhesion to many substrates (glass, ceramics, metals, plastics and powder coatings)
- Suitable as thermal barrier at extreme conditions
- Becomes a hard ceramic under extreme heat (e.g. thermal propagation of a battery module)
Technical data
Properties uncured*
| Property | Condition | Value | Method |
| Viscosity, dynamic | 23˚C | 10 1/s | ~ 120000 mPa-s | - |
Properties cured*
| Property | Condition | Value | Method |
| Density | 23˚C | approx. 1.7 g/cm3 | DIN EN ISO 1183-1 A |
| Hardness Shore A | - | approx. 60-70 | ASTM D 2240 |
*These figures are only intended as a guide and should not be used in preparing specifications.
Applications:
- Automotive, EV battery
- Adhesives
- Electrics, electronics & Lighting
For complete product information, please refer to wacker.com.
Graco system solution:
Graco provides a complete dispensing solution for ELASTOSIL® RT 775. Designed for the application of plural component intumescent fire protection coatings for battery applications, the Graco system is the first and only complete system equipped to dispense this advanced material. Our fully automated system provides a thorough and effective coating ideal for high-volume production.
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For applying ELASTOSIL® RT 775
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