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Metacaulk Putty Pads are used to maintain the hourly rating of fire-rated walls containing electrical outlet boxes and to reduce sound transmission. Only one pad thickness (1/8-Inch) is required for a 1 or 2 hour fire rating. Hand moldable with no curing time required. STC rating 60, Tested in a UL 411 wall assembly/section to ASTM E90
From the Manufacturer
Metacaulk Putty Pads are used to maintain the hourly rating of fire-rated walls containing electrical outlet boxes and to reduce sound transmission. Only one pad thickness (1/8-Inch) is required for a 1 or 2 hour fire rating. Hand moldable with no curing time required. STC rating 60, Tested in a UL 411 wall assembly/section to ASTM E90
EthericOne
Reviewed in the United States on May 9, 2025
We purchased many of these for air sealing exterior light and power outlets, as well as attic air sealing. The putt molds well around any fixture and has the added bonus of acting as a firestop. The City inspector was most impressed. Also, no toxic smell or off-gassing. Expensive but then it's one and done.
Blackito
Reviewed in Canada on March 26, 2025
Perfect for soundproofing your electrical boxes when soundproofing a wall or ceiling.
Bassman
Reviewed in the United States on April 19, 2025
Good but expensive
Timothy Demonbreun
Reviewed in the United States on August 19, 2024
I wanted to isolate the noise from a room and it helped at least as much as I expected it to. I only put it on one outlet cover, but the noise was reduced in the next room.
Customer
Reviewed in the United States on July 9, 2024
Worked perfectly for my application
A. Falk
Reviewed in Canada on December 28, 2024
Used this to fill in gaps around electrical outlet boxes and on the faceplates, it reused noise transmission between rooms
Richard D Mccombs
Reviewed in the United States on November 1, 2024
First my 3 rating is on the task I was using it for, your experience may be different. I was wrapping the puddy around a motor on a motorized recliner. It did take out some of the bad sound but not all. Is less of a mess but still a mess.
oakman
Reviewed in the United States on August 29, 2023
Works exactly as advertised. Would use again..
Ryan
Reviewed in the United States on August 13, 2023
I originally tried using the 3M spray foam fire blocking, but it was incredibly messy and hard to get into tight spaces. This fire retardant putty is hands down easier to use. Spray foam is fine if the drywall isn’t up yet and you have dozens of holes to fill and no time to spare, but if you only have a couple small areas to add fire blocking, this putty is easy to use, super malleable, and essentially zero clean up. I think it even has a better fire blocking rating compared to the orange spray foams. They sell putty sticks and putty pads like this one. I just cut out a small square from the pad for each hole I need to cover. Super easy!
Customer
Reviewed in Canada on October 17, 2022
The product is easy to install. Sticky, make sure to wear working gloves.
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