3M Fire Barrier Sealant CP 25WB+, Red Color, 10.1 fl oz Cartridge

I used this sealant for a firestop application where penetrations needed to be properly sealed, and it performed exactly as expected. The caulk applies smoothly with a standard caulk gun and has a workable consistency that makes it easy to fill gaps without excessive dripping. As expected from 3M, the product feels professional grade and is clearly intended for code-compliant fire barrier installations rather than general household caulking. The bright red color also makes it easy to identify after installation. If you're looking for a fire-rated sealant for the appropriate application, this is a reliable option from a trusted manufacturer. Be sure to verify that it meets the requirements of your specific project.

Great product for sealing up seams on fireplace or heaters.

I cannot speak to it's fire rating as we have not had a fire but this product's consistency, spreadablility and use of fiber in the mix creates the perfect product for us. We use it to fill gaps in a woodstove. And also spread on wood that is near a stove vent pipe. It does not get super hot but we take all precautions. This goes on good with gloved fingers, a good thickness and the fibers keep it where you put it.

Works great but not sure why even with out pressure from the caulking gun it still comes out of tube . All the pressure is released . Maybe product is old ,

Great for safe

This sealant is easy to use in a caulking gun. It is easy to smooth and cleans up quickly. I am confident and happy the cracks in my fireplace bricks are sealed for the season.

This is the stuff. When you're installing conduit or otherwise penetrating a fire-rated wall, follow the instructions and seal around the conduit to the right width and depth, and you'll restore that wall's fire rating. Don't just squirt this stuff out of a caulking gun and think you've accomplished anything. That's not how it works; read up on it, watch some videos, and use it the way it's intended. It's the industry standard for a reason.

Works great

Excellent product but Amazon delivery sucks

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Es lo que necesitaba para realizar mi actividad laboral

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