PR-238 · Fire Rated
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Fire-Rated Silicone Sealant
High temperature fire-rated sealant. Interior and exterior use, for fire-rated joints, cable penetrations and fire door sealing applications.
| Product Standard | GB/T 24267-2009 |
|---|---|
| Cure System | Neutral Cure |
| Packaging | 300mL cartridge, 590mL sausage |
| Shelf Life | 12 months from production date |
| Transport | Non-hazardous goods |
| Storage | Dry, ventilated, cool place |
Technical Data
| Classification | SR FV-0 (3.0 mm) 7.5P |
|---|---|
| Sag resistance (vertical) | 0 mm (max. 3) |
| Tack-free time | 1.0 h (max. 3) |
| Extrusion rate | 374 mL/min (min. 80) |
| Elastic recovery rate | 88% |
| Elongation at break | 73% (min. 25) |
| Elongation at break after water immersion | 62% (min. 25) |
| Mass loss | 3% (max. 25) |
| Flame time (total, 5 specimens) | 0 s (max. 50) |
| Afterflame after 2nd application | 0 s (max. 30) |
| Flame spread to clamp / dripping ignition | None |
Typical values obtained under laboratory conditions (23°C / 50% RH) and not intended for specification purposes. Tested to GB/T 24267-2009 — Report No. 2022MJ007. Download the full test report on request.
Product Characteristics
- Excellent flame retardancy — highest fire rating
- Fire barrier and smoke seal for inter-story spaces
- Fire sealing for cables, cable trays and pipe penetrations
- Good water and air tightness
- Flame retardant sealing for fire-resistant window and door systems
- Excellent weather aging and temperature resistance
Applications
- Curtain wall inter-story fire barrier
- Cable and pipe penetration fire sealing
- Fire-resistant door and window perimeter
- Building compartment firestop systems
Limitations
- Not for use as structural adhesive
- Not for oily or exuding surfaces
- Not for unventilated areas
- Apply at 4°C to 50°C
Application Scope
