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Old Oct 11, 2002, 09:50 AM
Doc Dyer is offline
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Where to buy large blocks of 1# foam?


Does anyone know where I can buy large blocks of the 1 pound foam. where in the phone book would I look for companys that would carry this?

Thanks,
Bradley
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Old Oct 11, 2002, 10:18 PM
Ed Waldrep is offline
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Try www.aircraftspruce.com
Old Oct 12, 2002, 11:54 AM
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1 pound foam? Maybe it's 2 pound you are looking for. If so...

I get my white 2 pound expanded bead from a refrigerator vault building company. They make walk-in vaults, like what a 7-11 store has for drinks and such. They have a warehouse stacked to the ceiling with white and blue/pink foam. Just looking at all that foam makes me drool.

Price (as I remember from 2 years ago) was $18 for 4'x8'x2" for white and $28 for blue/pink. Look under "vaults" in your yellow pages. This one here in Dallas is happy to sell their foam but it's not part of their regular business. Other companies may not want to sell their foam.

Good hunting.
Old Oct 12, 2002, 01:02 PM
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The last time I bought a bunch of foam, I called around the various places listed in the yellow pages under "Plastics-Foam" untill I found a place that could deliever 1 pound foam.

Starfoam here in Fort Worth, Tx actually makes the foam billets in house and can make foam billets down to about .8 lb per cubic foot. When youy ask for 1 lb foam, you will get something between .8 and 1.2, usually.

The weight can make a difference on some types of models. A piece of 1 lb density foam that is 12" x 12" x 1" (1/12th of a cubic foot and about the size of a small to medium size wing) would weigh about 1.33 oz.

The same size piece of 2 lb density foam would weight about 2.66 oz.

For almost all wing construction where the foam is sheeted in some way, the lighter the better.

Just something to keep in mind.
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Old Oct 12, 2002, 02:52 PM
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I just checked my foam - my white is about 1 pound per cube foot and blue about 2.2 pound per cube foot.
Old Oct 12, 2002, 07:07 PM
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Thanks,

I think that I found someone in knoxville that has some.

Bradley
Old Oct 12, 2002, 08:09 PM
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My second Zagi was the LE version...I already had a replacement tray and motors so I didn't want the full kit. Only later did I discover that that version had the normall EPP on the leading edge but the EPS foam after that was 2 LB foam. That Zagi was a dog, it was too heavy, climb was horrible. My third Zagi was the THL version, that one has 1 LB foam instead of 2...much lighter, that one flew a lot better.

The foam density does make a noticeable difference.
Old Oct 13, 2002, 05:24 PM
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Dow Blue Foam - 2" sheets (4' x 8') at Lowes. Anyone know what the weight is? (1 LB OR 2 LB?) I have some but am not sure, it seems light though.
Last edited by Hawker; Oct 13, 2002 at 05:28 PM.


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