QUICK FRK question, should be easy, slightly urgent though..

BusyBoxSt7 · Post by **BusyBoxSt7** » Mon Aug 17, 2009 4:36 pm

A FRIEND'S GOING TO THE SUPPLIER TOMORROW, SO A FAST RESPONSES WOULD BE QUITE APPRECIATED...

My insulation supplier, SPI, has a similar product to FRK in stock called Lamtech 3035 PE and it's a glue-backed version. He can also order a glue-less kind.

1) Does the thickness added by the glue-layer matter? Even if I use the glue-backed material w/o melting it and use spray adhesive instead (maybe more convenient)?
2) Anyone out there used the spray adhesive? How easy is that? What adhesive did you use and how much does it cost?

I was thinking of buying the glue-backed kind (since in stock) and either installing it myself w/ spray adhesive, or taking my mineral wool back there for them to attach it via industrial strength heat (requires like 400 degress to activate the glue layer). Just wondering if any of these details matter much.

501.412.7115

myfipie · Post by **myfipie** » Thu Aug 20, 2009 5:30 am

I am guessing a bit, but I bet it would be ok for bass trapping. Though you might want to see if they have any lab numbers on it just to be safe.

Glenn

BusyBoxSt7 · Post by **BusyBoxSt7** » Thu Aug 20, 2009 11:19 am

Glenn,

Apparently, Lamtech is the only maker of FRK / FSK (used to be Compaq made it.. not sure of spelling) at this point and they supply it to Owens Corning. So it's definitely the same material. As far as whether it's the exact same thickness, can't find any info but I'd guess they wouldn't go to the trouble to make multiple different versions of such a simple product. Who knows.

OC doesn't sell FRK w/o the fiberglass do they? That would answer the question cause we could find specs on the "OC" version.

Btw, the stuff is only $.12 w/ glue backing or $.08 w/o glue back. Price per SF, scrim only, no mineral wool included. It's an easy way to experiment, being so cheap. And then you can take it back to the supplier and have them apply it to your min. wool / fiberglass if needed (free).

BusyBoxSt7 · Post by **BusyBoxSt7** » Thu Aug 20, 2009 4:32 pm

PS. just went and got some today... they gave me a roll of it free to play around with since they don't really stock it for sell, more use it to make their own FSK-backed sheets of mineral wool. Thank God for free stuff.

myfipie · Post by **myfipie** » Fri Aug 21, 2009 1:29 am

YES OC makes it without FRK backing

BusyBoxSt7 · Post by **BusyBoxSt7** » Fri Aug 21, 2009 1:33 am

myfipie,

I was asking the opposite: whether OC sells the backing by itself (w/o the fiberglass).

Ethan Winer · Post by **Ethan Winer** » Fri Aug 21, 2009 8:27 am

BusyBoxSt7 wrote:I was asking the opposite: whether OC sells the backing by itself (w/o the fiberglass).

FRK is basically the same type of paper that brown grocery bags are made from. It's called Kraft paper. It's also sold on rolls for wrapping boxes for shipping.

--Ethan

BusyBoxSt7 · Post by **BusyBoxSt7** » Fri Aug 21, 2009 11:32 am

Ethan,
Do you mean just the kraft tape or actual huge rolls like 3 foot wide? If so, where can one purchase these?

sound for sandwiches · Post by **sound for sandwiches** » Fri Aug 21, 2009 11:54 am

We buy this for work all the time,

http://www.dickblick.com/products/blick ... aft-paper/

comes in up to 48" wide rolls.

but you should be able to find it locally to avoid shipping.

David

BusyBoxSt7 · Post by **BusyBoxSt7** » Fri Aug 21, 2009 12:33 pm

So does the foil layer matter or not? FRK being 1/2 foil 1/2 kraft paper....

Ethan Winer · Post by **Ethan Winer** » Mon Aug 24, 2009 9:50 am

No, foil is not needed. That's used with FRK only to make the paper waterproof, which you don't need.

--Ethan

myfipie · Post by **myfipie** » Tue Aug 25, 2009 5:33 am

BusyBoxSt7 wrote:myfipie,

I was asking the opposite: whether OC sells the backing by itself (w/o the fiberglass).

Sure you can just buy the backing. Not sure where to get it from though.

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QUICK FRK question, should be easy, slightly urgent though..

QUICK FRK question, should be easy, slightly urgent though..

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