Hilti
CP 660 Flexible firestop foam
- SKU:
- 203517
- Availability:
- Usually Ships Same Day
- Weight:
- 1.00 LBS
Description
CP 660 Flexible Firestop Foam
Hilti CP 660 Flexible Firestop Foam is an easy-to-install two-component polyurethane firestop foam designed to help create a fire and smoke barrier around cable, conduit, pipe, and mixed through-penetrations.
Designed for commercial, industrial, and infrastructure applications, CP 660 expands and cures quickly to support efficient firestop sealing. Its flexible, re-penetrable design makes it well suited for openings that may require future cable additions or system modifications.
Product Highlights
- Flexible firestop foam for through-penetration sealing
- Two-component polyurethane formulation
- Helps create a fire and smoke barrier around penetrations
- Designed for cable penetrations
- Suitable for cable bundles and cable trays
- Suitable for conduit and pipe penetrations
- Suitable for mixed penetration openings
- Expands during installation
- Quick-curing design
- Re-penetrable for future cable additions or changes
- Can be shaped during curing
- Can be cut after curing
- Single-sided installation possible in many applications
- Suitable for commercial, industrial, and infrastructure projects
Technical Specifications
| Product Type | Flexible Firestop Foam |
|---|---|
| Manufacturer | Hilti |
| Model | CP 660 |
| Material Type | Two-Component Polyurethane Foam |
| Primary Function | Fire and Smoke Sealing of Through-Penetrations |
| Typical Penetrations | Cables, Cable Bundles, Cable Trays, Conduits, Pipes, and Mixed Openings |
| Re-Penetrable | Yes |
| Shaping | Can Be Shaped During Curing |
| Post-Cure Modification | Can Be Cut After Curing |
| Installation Access | Single-Sided Installation Possible in Many Applications |
| Typical Applications | Commercial, Industrial, and Infrastructure Firestop Systems |
Flexible Firestop Sealing
Fire & Smoke Barrier
CP 660 is designed to help seal openings around compatible penetrations and support the continuity of fire and smoke barriers.
It is suitable for a range of penetration types, including cables, conduits, pipes, cable trays, and mixed-service openings.
Expanding Foam Design
The two-component polyurethane foam expands during installation to help fill irregular openings and spaces around penetrants.
This makes it useful for complex mixed openings where multiple services pass through the same penetration.
Re-Penetrable Design
Hilti CP 660 is re-penetrable, allowing future cable additions or changes to be made through the firestop opening when permitted by the applicable system design.
This flexibility makes it especially useful in facilities where electrical, data, control, or communication systems may need to be modified after the original installation.
Shaping & Finishing
Shape During Curing
The foam can be shaped during the curing process to help form the required seal geometry around the penetration.
Cut After Curing
Once cured, the foam can be cut as needed for finishing or permitted modifications to the completed firestop installation.
Single-Sided Installation
The supplied product information identifies single-sided installation as possible in many applications.
This can simplify firestop installation where access to both sides of a wall or floor opening is limited, provided the specific application and approved firestop system allow it.
Included Components
- 1x CP 660 Foil Pack
- 1x RE 500 Sulzer Mixer Assembly
Why Choose Hilti CP 660?
Efficient Installation
- Expanding foam fills irregular openings
- Quick-curing formulation
- Can be shaped during curing
- Can be cut after curing
- Single-sided installation possible in many applications
Flexible for Future Changes
- Re-penetrable design
- Supports future cable additions
- Suitable for mixed penetrations
- Useful for changing building systems
- Designed for professional firestop applications
Typical Applications
Cable & Electrical Penetrations
- Individual cables
- Cable bundles
- Cable trays
- Conduits
- Communication and control penetrations
Mixed & Mechanical Openings
- Mixed penetration openings
- Compatible pipe penetrations
- Commercial construction
- Industrial facilities
- Infrastructure applications
Installation
Confirm that Hilti CP 660 is approved for the specific wall or floor assembly, opening size, penetrant type, and required fire-resistance rating before installation.
Prepare the opening and penetrants according to the applicable Hilti firestop system and installation instructions.
Install the supplied mixer assembly and dispense the two-component foam into the opening as required by the approved system.
Allow the material to expand and shape it during curing where necessary to achieve the required installation geometry.
After curing, trim or cut the foam only where permitted by the applicable firestop system.
For future re-penetration, follow the applicable Hilti requirements for adding cables or modifying the sealed opening while maintaining the required firestop performance.
Our specialists can help review your penetration type, opening size, wall or floor assembly, cable or pipe configuration, and firestop application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What is Hilti CP 660 used for?
CP 660 is designed for firestop sealing around compatible cable, conduit, pipe, cable tray, and mixed through-penetrations.
What type of material is CP 660?
CP 660 is a two-component polyurethane firestop foam.
Does CP 660 expand during installation?
Yes. The foam expands as it is dispensed and cures, helping fill spaces around compatible penetrations.
Can CP 660 be used around cables?
Yes. The supplied product information identifies cables, cable bundles, and cable trays as suitable penetration types.
Can CP 660 be used around conduits and pipes?
Yes. Conduit, pipe, and mixed penetration openings are among the applications identified for the product.
Is CP 660 re-penetrable?
Yes. The supplied product information identifies CP 660 as re-penetrable for future cable additions or changes.
Can the foam be shaped during installation?
Yes. CP 660 can be shaped during curing.
Can CP 660 be cut after it cures?
Yes. The supplied product information states that the foam can be cut after curing.
Can CP 660 be installed from one side?
Single-sided installation is possible in many applications, depending on the specific approved firestop system and construction condition.
What is included with this listing?
The supplied package contents include one foil pack and one RE 500 Sulzer Mixer Assembly.
Can CP 660 be used in any opening?
No. The opening, penetrants, construction assembly, and required fire rating must match an applicable approved Hilti firestop system.
What should I verify before ordering?
Confirm the wall or floor assembly, penetration type, opening dimensions, required fire rating, application conditions, and applicable Hilti firestop system before ordering.
Important Ordering & Installation Notes
- This listing is for Hilti CP 660 Flexible Firestop Foam.
- Package includes one foil pack.
- Package includes one RE 500 Sulzer Mixer Assembly.
- CP 660 is a two-component polyurethane firestop foam.
- Verify that the product is approved for the intended penetration and construction assembly.
- Confirm required fire and smoke performance before installation.
- Verify opening dimensions and penetrant configuration.
- Follow the applicable Hilti firestop system details.
- Prepare the opening according to Hilti requirements before dispensing.
- Use the correct mixer assembly and dispensing method.
- The foam expands during application and curing.
- The foam can be shaped during curing.
- The cured foam can be cut where permitted by the approved system.
- Re-penetration must be performed according to the applicable Hilti firestop requirements.
- Single-sided installation is possible only where permitted by the specific application or system.
- Do not assume one firestop system applies to all walls, floors, penetrants, or opening sizes.
- Follow applicable building, fire, and life-safety requirements.
- Refer to Hilti technical documentation for complete approved system and installation requirements.
