Anyone use Airstone on wall behind a wood stove? Thinking of using it and was looking for some positives/negatives from anyone with experience using it. Installing a jotul oslo wood stove.
Air Stone from lowes
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I don't think it is pure cement. I think it has some type of foam mixed into it. Their website says it can be used for fireplace and is non-combustible. Any thoughts would be great.
Look up the msds and see what's in it. If foam is in it I would treat it as a combustible. It might not burn but I wouldn't want it outgassing either.
I looked at AirStone also. Seems a little pricey for me.
The corner pieces were $$$$$$$! Though they may not be needed in all back-wall hearth installs.
On the plus side, it seems like it would be VERY easy to install. Easy to cut and glue up. Light too.
I opened a box to feel it. It seems like a "plaster" type product more than cement. Definitely didn't seem like foam to me.
I noticed they sell TWO different colors also. Brown/tan. And Grey/slate mix.
The corner pieces were $$$$$$$! Though they may not be needed in all back-wall hearth installs.
On the plus side, it seems like it would be VERY easy to install. Easy to cut and glue up. Light too.
I opened a box to feel it. It seems like a "plaster" type product more than cement. Definitely didn't seem like foam to me.
I noticed they sell TWO different colors also. Brown/tan. And Grey/slate mix.
This in on the website
AirStone is non-flammable, non-combustible and safe to use around wood stoves and fireplaces. It has a Class A rating in accordance with ASTM E-84 standards. AirStone Interior Adhesive is rated up to a temperature of 120˚F, and AirStone Exterior Adhesive (which can be used indoors) is rated up to a temperature of 300˚F.
SECTION 5 – FIRE FIGHTING MEASURES
Flash Point: None Flash Point Method: Not applicable
Upper Flammability Limit: Not applicable Lower Flammability Limit: Not applicable
Flammability Classification: Non-flammable Auto Ignition Temp: Not applicable
Extinguishing Media:
Use any extinguishing media appropriate for the surrounding fires.
Unusual Fire & Explosion Hazards:
None identified.
Fire-Fighting Instructions:
Use self-contained breath apparatus (SCBA) and protective clothing ensemble as defined in NFPA 1500.
SECTION 2 – COMPOSITION / INFORMATION ON INGREDIENTS
CAS# Component
65997-15-1 Cement
Not Available Non-hazardous ingredients
Proprietary Filler
1309-37-1 Iron Oxide
Does anyone know what the proprietary fill is in the air stone? When I looked at it at lowes it looks like little white balls. I don't want there to be any off gasses as mentioned above.
It sounds like it is something similar to air entrained concrete. From the Portland site: Air-entrained concrete contains billions of microscopic air cells per cubic foot.
If they have figured out how to maximize the air, it would be very light.
The problem I see would be the cement. If the max. temp is 120
, that seems to be combustible to me. It depends how picky an inspector might be. My rear wall is 6" away with a heat shield and does not get that hot but it is over 100.
If they have figured out how to maximize the air, it would be very light.
The problem I see would be the cement. If the max. temp is 120
, that seems to be combustible to me. It depends how picky an inspector might be. My rear wall is 6" away with a heat shield and does not get that hot but it is over 100.I've used it with great success, easy to install and looks fantastic.. I used the outside apoxy though instead of the indoor. The outdoor is rated to 300 degrees.
If it is a concrete product, I would try using mortar. Can't see why it wouldn't work but since I have not seen the product, not sure. It would be a lot cheaper and fire rated but not as strong a bond as epoxy. Can't see needing that strong a bond myself though.
I just went with what the product called for , no sense in having headaches down the line just in case another method didn't work as stated. I utilized the outside apoxy mainly for the temperature insurance, did not want stone falling off the walls a year of two down the line. Also the outside apoxy comes in tubes which made applying alot easier.
I was thinking about using it and you just made my decision. Looks great...I like the idea of easy instalation
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