BlazeMaster® Caulk & Walk® Pro is an intumescent, acrylic-based firestopping sealant for use in fire-rated building construction.
1 and 2 hour fire-rated

BlazeMaster® Caulk & Walk® Pro is specifically designed to be compatible with BlazeMaster CPVC fire sprinkler pipe, and is listed for CPVC pipe penetrant fire-rated assemblies. It has been tested for penetrations through a variety of assemblies, including 1 and 2-hour rated gypsum wallboard and 2-hour concrete walls. Also been tested for metallic pipe penetrations which enables the product to be utilized for firestopping when pipe transitions are employed.

About Compatability

Lubrizol BlazeMaster CPVC fire sprinkler systems have been used successfully for decades in building construction and renovation. BlazeMaster systems are ideally suited for use in fire protection primarily due to their ease of installation, outstanding corrosion resistance, low flame spread and low smoke characteristics. However, these properties can be compromised if the CPVC pipe comes in contact with incompatible chemicals found in some construction products.

One area where these incompatibilities can be found is in firestopping sealants. Certain firestopping sealants within the industry contain chemicals that are incompatible with CPVC piping systems. These chemicals can cause the wall of the CPVC pipe to weaken and may even cause environmental stress fractures. BlazeMaster® Caulk & Walk® Pro is a firestopping sealant that is compatible with BlazeMaster CPVC fire sprinkler pipe.

Easy Installation

BlazeMaster® Caulk & Walk® Pro is an intumescent, acrylic-based firestopping sealant for use in fire-rated building construction, that is paintable, and easy to install. View our installation video for step-by-step instructions.

Product Data

Click on the links to view the full specifications for BlazeMaster® Caulk & Walk® Pro intumescent firestopping sealant.

Firestop Systems

View legacy and new Systems for assorted penetrations.

Systems Cross Reference
Assembly Penetrating Item Legacy System New System
Metallic W-L-1147 W-L-1605
Gypsumboard Walls CPVC/PVC W-L-2151 W-L-2816
CPVC/PVC -- W-L-2817
Metallic With Fiberglass W-L-5155 W-L-5380
Wood Floor / Ceiling Metallic F-C-1803 F-C-1196
Metallic With ABPVC F-C-5047 F-C-5098
CPVC/PVC C-A-J-1304 C-A-J-1752
Concrete Walls & Floors CPVC/PVC C-A-J-2221 C-A-J-2926
Metallic With Fiberglass C-A-J-5181 C-A-J-5451
For more information on BlazeMaster® Caulk & Walk® Pro, please contact your local distributor or call STI customer service at 1-800-992-1180