RE: [PSUBS-MAILIST] Crush-resistant Glass Micro Spheres

["Alec Smyth" <Alec.Smyth@compuware.com>]

For making syntactic foam. Stuff that floats and you can mold, but which is incompressible. So if you're sub comes out too heavy, you can bolt some of it on and make corrections to the buoyancy, like the opposite of adding more lead weights. Or maybe design it that way if you have a very special reason. Subs like Alvin use big blocks of syntactic foam formed into nice shapes.

Rgds,

Alec

-----Original Message-----
From: Marie-Andrée et Pierre [mailto:poulin.carrier@videotron.ca] 
Sent: Thursday, June 30, 2005 7:56 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Crush-resistant Glass Micro Spheres

Sorry I don't understand...

What are those used for?

Pierre Poulin


----- Original Message ----- 
From: <drewacard@charter.net>
To: <personal_submersibles@psubs.org>
Sent: Thursday, June 30, 2005 10:37 AM
Subject: [PSUBS-MAILIST] Crush-resistant Glass Micro Spheres


>I found these on http://www.mcmaster.com/ and though of ALVIN
>
> Glass Micro Spheres
>     Made of crush-resistant hollow glass, these micro-sized spheres 
> displace four to six times their weight in most resins. Spheres are used 
> as a filler when added to completely mixed epoxy resin and hardener. 
> Supplied in a 1-lb. bag.   1414T36  Each  $14.98
>
>
>
>
>
>
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