Intumescent Firestop Wrap Strip 1" – Everkem WS-1 Fire Barrier
- ✔ In Stock — Ships Same Day or Next Business Day
- ✔ Trusted by contractors and industrial buyers
- ✔ Bulk pricing available — Request a Quote
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✔ Commercial-Grade Firestop Product – Built for Code-Compliant Installations
✔ UL Classified – Trusted by Contractors and Inspectors
✔ Bulk Pricing Available – Built for Jobsite Use
High Demand Item – Frequently Reordered by Contractors
The Everkem WS-1 Intumescent Firestop Wrap Strip is a flexible intumescent material used to create mechanical firestop protection around plastic pipe penetrations in fire-rated wall and floor assemblies. The strip is wrapped around combustible pipe at the penetration point — when exposed to heat, it expands to close the void left by melting pipe, maintaining the fire rating of the assembly. An efficient, reliable solution for contractors sealing plastic pipe in commercial firestop applications.
Applications
- Plastic pipe penetrations in fire-rated walls and floors
- PVC, CPVC, and ABS pipe firestop applications
- Commercial and industrial construction
- New construction and retrofit installs
Key Features
- Intumescent material expands under heat to seal pipe void
- Flexible strip wraps around pipe at penetration
- Maintains fire rating of wall and floor assemblies
- Available in 1" width for different pipe sizes
- No special tools required for installation
Frequently Asked Questions
Is this UL listed?
Yes. The WS-1 wrap strip is designed for use in UL classified firestop assemblies.
What pipe does this work with?
Designed for combustible plastic pipe including PVC, CPVC, and ABS.
How is the strip secured?
The strip is wrapped around the pipe and secured at the penetration point per the installation instructions.
What is the strip length?
432 inches (36 feet) per roll.
Why Contractors Choose This Product
- UL classified for commercial firestop applications
- Reliable fire and smoke protection at penetrations and joints
- Fast application reduces time on each firestop install
- Trusted by contractors and passes inspector review
- Bulk pricing available for large projects
✔ Bulk Pricing Available
✔ Fast Shipping from Multiple U.S. Warehouses
✔ Built for Contractors, Not DIY
Built for commercial firestop applications, the Everkem WS-1 wrap strip provides reliable intumescent protection at plastic pipe penetrations. Ships same day.
Ideal for contractors requiring code-compliant firestop sealing on plastic pipe in fire-rated assemblies.