Putty Pads

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Michael Jones

Michael Jones

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I got these in the mail from acoustic solutions, the other day.
I have about 12 more to do. I've never worked with these before; they sure are messy.
Do these look right, as far as installation goes?
 

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I'm afraid I cannot help you, but you can help me! :D

what are they for?
 
the sneak said:
what are they for?
Click to expand...
They are used to "seal off" the backs of the electrical boxes; where the wires enter the boxes. They also give some meat or density to the box itself.
Orginally they were developed to aid in fire prevention for electrical junction boxes.
 
Interesting Michael... I really like how far the front of the box is from the stud :) ... thick walls. Do you cut the wallboard the size of the box and push the putty back with it to seal it from the back?

Kevin.
 
Michael Jones said:
I got these in the mail from acoustic solutions, the other day.
I have about 12 more to do. I've never worked with these before; they sure are messy.
Do these look right, as far as installation goes?
Click to expand...

Almost Michael,

But you have to wrap the putty to cover the stud as well - and right over the top of the nails that join the box to the stud.......

OK?

Rod
 
longsoughtfor said:
Interesting Michael... I really like how far the front of the box is from the stud :) ... thick walls. Do you cut the wallboard the size of the box and push the putty back with it to seal it from the back?

Kevin.
Click to expand...
I say cut the wallboard the size of the box, and let the putty squish in around the back of it, then cut strips of the putty and pack it in around the front.

The boxes themselves allow you to adjust the depth from the wall. They ride on a little track that allows the box to move in and out via a little set screw.
Remember, I'll have a triple layer wall system:
1/2" drywall-1/2"OSB-5/8" drywall; so that's 1 5/8" that thing has to come out from the stud. Rockwool in between the studs of course.

Rod was the one who actually acquainted me with this product. My delima was what to do about penetrations in the wall due to elec. boxes. You could always have the electrical on the outside of the wall, and avoid penetrations, but I just don't like that look. It looks like the electrical was an afterthought to me, when done that way.
This seems to be a great solution. The only draw-back is that these things (putty pads) are insanely expensive.
 
The great thing about putty packs is that they have an STC rating of 40... and that is the big advantage in use for sound isolation walls.

Rod
 
I think I understand Rod.
Like this??
 

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Here's one of the boxes.
See how the box rides on a track integrated to the frame?
That set screw in front allows for adjustments in depth.
 

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You must be the only guy in that entire Third-World country with such cool J-boxes.:p
 
c7sus said:
You must be the only guy in that entire Third-World country with such cool J-boxes.:p
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In all of your worldly travels, C7, you've never seen those?
 
We used this stuff when I worked in a hospital to plug up holes in Fire Rated walls that had to have wires run through them. It was called Firestop back then. I found it at Home Depot a couple of months ago. The price for a brick of it didn't seem that high, about $3.00 a brick compared to what it was back in the early 90's which was about $10.00 a brick.
The stuff I saw at Home Depot is called Gardner Bender Duct Seal Compound. It doesn't say that it is firestop so it may not be the same product as what you got but it's just a real thick putty. Oh yeah and it's gray, not red.
 
MikeA said:
The stuff I saw at Home Depot is called Gardner Bender Duct Seal Compound. It doesn't say that it is firestop so it may not be the same product as what you got but it's just a real thick putty.
Click to expand...

It isn't anywhere near the same animal......... I have no idea of it's ability to adhere (long term) to wood - as this is not what it's designed for.

The Duct Seal Compound is :

Electrical duct sealing compound
Malleable non-conductive
For sealing raceway connections
Seals off air, noise & moisture
1 pound bar
10 bars per box

No raceways (or raceway connections) that I know of are manufactured from wood. So i doubt if it's ever been tested for that application.

Rod
 
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