Product Description：

G21 High Temperature Resistant RTV Silicone Gasket Maker is a one part, acetoxy cure, high quality silicone sealant which withstands very high temperatures: up to +315ºC during permanent work and up to +365ºC for temporary contact.

It has excellent adhesion properties to most building materials including and engine applications: Gasket marker, glass and glazed surfaces, ceramics, enamel impregnated and painted wood.

Applications:

• High temperature resistance


• High modulus and very low shrinkage on curing


• Excellent adhesion – on curing will form a strong bond to many common non- porous building components; typically glass surfaces.

Application method:

Application method: With manual or pneumatic caulking gun.

Cleaning: Clean with white spirit or surface cleaner immediately after use (before curing).

Finishing: With a soapy solution before skinning.

Repair: With the same material.

Packaging: 

300 ml cartridge or 750 ml sausage,24pcs / carton, 180kgs / drum

Colour: Transparent/White/Black/

Grey/Customization

Shelf life:

12 months in unopened packaging in a cool and dry storage place at temperatures between +5°C and +25°C.

Technical data:

Basis	Polysiloxane
Consistency	Stable paste
Curing system	Moisture curing
Skin formation* (23°C/50% R.H.)	Ca. 8 min
Curing speed * (23°C/50% R.H.)	Ca. 5 mm/24h
Hardness**	Ca. 35 Shore A
Density**	Ca. 1.02 g/cm³
Elastic recovery (ISO 7389)**	> 80 %
Maximum allowed distortion (ISO 11600)	25 %
Max. tension (ISO 37)**	Ca. 1,10 N/mm²
Tensile Modulus 23℃（Mpa）	0.35
Elongation of Rupture (ISO 37)**	300 %
Temperature resistance**	-60 °C → 343 °C
Application temperature	5 °C → 35 °C

* These values may vary depending on environmental factors such as temperature, moisture, and type of substrates.

** This information relates to fully cured product.