KASTAR 763 Firestop Neutral silicone sealant
Excellent fire resistance, able to prevent burning
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A silicone-based firestop sealant that provides maximum movement in fire-rated joints, and seals through-penetration applications in fire-rated joints, and seals through-penetration applications Easy to use one part, neutral curing, KASTAR Fire-rated Silicone Sealant. It Combines excellent adhesion with durability and can be used for internal and external applications.
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Compared with traditional fire-resistant sealing materials, Kastar Fireproof Silicone Sealant has outstanding advantages in flame retardancy, adhesion, displacement, water tightness and service life.
The colloid is smooth and has no air hole
Can withstand high temperature of 2192℉
Unafraid to temp difference, Cold＆heat resistant
*Curing condition of the sample: 23℃×50%RH× 14 days
|Basis||Neutral elastic silicone|
|Specific gravity||Approx. 1.4 g/cm3||(ASTM D 792)|
|Tack-Free time||15-30 min (23 °C and 50%||(ASTM C 679-03)|
|Curing Rate (mm/day)||Min.2 mm/day (23 °C and 50%|
|Shore A hardness||40 ± 5 Shore A|
|Volume shrinkage||Approx. 0 – 5%||(ASTM D 412)|
|Movement capability||Approx. 33%||(ASTM D 412)|
|Application Temperature||+5 °C to +40 °C||Flame spread: 0|
Smoke development: 25
Areas of application
- Sealing construction/expansion joints
- Top-of-wall joints
- Metal pipes
- Cable bundles
- HVAC penetrations
For use with
- Arious base materials such as masonry, concrete, metal, etc.
- Wall and floor assemblies rated up to 4 hours
- Fire-resistant sealing of connection and expansion joints in constructions.
- All building and glazing joints require a fire rating.
- Suitable for all common building materials.
|Efficiency /300 ml||20 meters||6 meters||2.5 meters||2 meters||1 meters|
Damp or humid conditions will significantly extend the cure time.
Do not apply below 5℃
Storage and shelf life
The shelf life is 12 months if stored in unopened-original package in a dry place at temperatures between +5℃and +25℃
Safety & Disposal
Bears no imminent risk to health. Check MSDS guidelines for disposal and further information concerning safety.
Wide application scope
Range of application of Kastar Fireproof Neutral silicone sealant: Fire-proof and moisture-proof sealing for decoration of hotels, cinemas and other public places, sticky and flame-retardant sealing for fire protection projects of various doors, windows, glass and curtain walls, And the fixing and flame-retardant sealing of electronic and electrical components.
High precision instrument