🚧 IN DEVELOPMENT & THIRD-PARTY CERTIFICATION. This is a new Dseal line; all performance figures below are target values pending UL 2079 / ASTM E1966 test certification. Not yet available for supply.
Dseal — Technical Data Sheet
Dseal PyroBarrier
Fire-Rated Expansion Joint Barrier System
Doc: TDS-PB-01
Rev: 00 (dev) · Jul 2026
Status: In certification
Rev: 00 (dev) · Jul 2026
Status: In certification
1. Product Description
Dseal PyroBarrier is a fire-rated expansion joint barrier for floor and wall joints, designed to maintain the fire-resistance rating of a wall or floor assembly across a moving joint. A combined-seal variant provides fire, water and air sealing in one system. The line is currently in development and third-party fire testing.
2. Applications
- Fire-compartment lines at floor and wall expansion joints
- Hospitals, airports, high-rise, data centres & other life-safety-critical buildings
3. Performance Specification (target)
| Fire rating (target) | 2 – 3 hour (development toward higher ratings) |
|---|---|
| Test standards (target) | UL 2079 · ASTM E1966 · movement per ASTM E1399 |
| Movement capability | Up to 100% total (±50%) |
| Applications | Floor and wall joints |
| Combined seal | Optional watertight + fire + air-seal variant |
4. Materials & Components
| Fire element | Intumescent + silicone composite, or ceramic-fibre blanket + stainless foil |
|---|---|
| Facing / seal | Fire-retardant silicone / elastomer surface (combined-seal variant) |
| Fixings | Stainless-steel anchors |
5. Standards & Compliance (target)
- UL 2079 · ASTM E1966 / E1399 · IBC 712.3 reference · relevant IS / NBC codes
6. Installation
Compression-fit fire element with mechanically-fixed retention per Dseal method statement (final details on certification). CAD / BIM details to follow.
7. Warranty
Dseal 10-year product warranty (on release).
This product is in development and third-party certification; all figures are target values and are not warranted until certification is complete. Dseal is an independent manufacturer; all third-party product and brand names are trademarks of their respective owners. © Dseal.