Rigid Polyester swamp cooler pad for traps?

[Emory]

Well this is my first post, so hello everyone..

I've relocated a project studio and am having to do construction again . Figured Id run something by you guys before getting off on a tangent and deviating from the tried and true 703 route..

I was just at the local home depot this evening looking for some rigid glass pipe insulation I heard they carried, well unfortunately I forgot it's 110 out today and being it's Arizona there isn't much of a demand for large pipe insulation,, oh well, hopefully they can order me some 703 at least.. Any-rate, I was walking down the isles looking at stuff, as I'm sure most of you do as well, thinking of how I could modify something to use in my studio.. Then it caught my eye, Bulk polyester evap cooler pads. Duracool, 33" x 160" Roll, High Efficiency Foamed Polyester Cooler Pad

Has anyone tested this yet for traps? It's rigid, cheep, and I thought of even sandwiching polyester batting in front and between to make it a bit denser.

Figured I'd ask first before I wast my time to experiment?

[camsr]

You are in Arizona? You should be able to get Thermafiber Mineral Wool Safing there easily. I found this out talking with someone at the only store in my area that carries mineral wool, they get it delivered from Arizona.

[Emory]

camsr: You'd be surprised at how hard it is to find preferred materials in such a large city, it's mind boggling. There is a OC plant in Eloy AZ, and nobody returns calls and they manufacture acoustic material, however nobody knows if it's 703, hell there is even a Johns-Manvilel plant as well. It seems to me they truck everything out of state, I went to lowes to special order 703, OC said it's not available?

If you've got some contact info for me that would be great, it's been years since ive needed to get insulation and my old contact is out of business, there are plenty of companies to call but its like seeing the forest through the trees.

[avare]

It looks like it might be closed cell, which not good for acoustics. Ask for 3 lb/ft³ fiberglass or 4 lb/ft³ mineral wool.

Andre

[camsr]

emory, i did some research for you (mineral wool) and this is what i came up with
ThomasNet® - Multiple Locations

you can also try for rigid fiberglass (which is what 705 is, 703 might be under the same category)

[MadMax]

SPI has 3 offices in AZ.... Service Center Directory for Specialty Products & Insulation Co.

[Emory]

Thanks guys, both have mineral wool, thomas net has IIG 4" 2x4 panels 4# and 8 and specialty products has Roxul 4" 4.5# density so I think I'll go with that if I cant find any 0c703, both gave me a decent price for what i'd pay online and shipping.

I still haven't heard back from OC on where I can find some small quantities of 703 locally, I'll probably hold out for another day to decide. Home depot can get it for me, min 10 case order 12 2x4 sheets pr case, $104 pr case, I guess I could sell what I don't use, if I go that rout but I hate putting out $1000.00

You guys are a great help thanks again.

[MadMax]

$104.00 PER CASE?!?!?!?

JEBUS!! That's a TOTAL RIPOFF!!!

Try about half that/case from SPI.... I'm not gonna call EM' for ya', so buy where you want... but SPI is either the 3rd of 4th largest distributor of Owens-Corning products on the planet.

[Emory]

I was just there at the SPI Phoenix location today, (602) 477-0341 Alisa, stated no 703 I went into the wearhouse to look at the roxul and didn't see any rigid glass period .

I'm telling you it's hard to get here in AZ, the gal told me that the owens corning plant in Eloy Az, doesn't make the 703 and they have to get a full truckload, downturn on construction they haven't been getting that many loads.. She's going to give me a call when they get some more, From what i've seen, prices on the Net for 703 it's $60.- $75.00 for 6 panels plus outrageous shipping.

So far my cheapest price and being able to get it, is 12 panel cases at the $104. and no shipping.. of course I have to buy 10 cases. If I can get 12 panel cases for 50-60 bucks from SPI I'll be a happy camper..

I wonder if our hotter than hell climate has anything to do with the availability here, or perhaps the HVAC trade? From what I understand some ducting is made up entirely of rigid fiberglass, I was reading an article where some in the trade really bash that practice. It stated that just after a year the board is in horrible shape and there are a lot of particulates in the air, many are being replaced with metal ducting.

[Rod Gervais]

Call John Manville and ask where you can get their products.........

As far as the duct board goes - I specify Polymer Lined duct board when I want to go that route - the polymer keeps the fibers intact - and the board still has good acoustic properties - but never for sound treatment............

the people in the trade who are bashing that probably have so much money invested in automated plasma cutting systems that they could never make the change - and are protecting their interests.

There are places where galvanized metal duct makes perfect sense - Max's project is one of those cases - and there are other cases where it doesn't........... there is no blanket covering whrere this is always better than that...........

Rod