Use with care- outgassing in a vacuum doesn't necessarily correspond with
what one will encounter around these parts. I've found that often times
what's really at issue is water vapor retention for terrestrial use. Many
commercially available foams left out in the open for a week or two in a
warmish (35C) and dry environment will work out pretty well if some
dessicant packs are thrown in and renewed pretty regularly depending on
usage. Just watch UV exposure as many open-cell foams can get pretty
"crunchy" with even a little sunlight. I've never found a need to spend a
ton of money where it isn't justified.
Best bet is to avoid foam where possible for long-term storage. Proper use
of common sense and desiccant packs should be fine if you have to keep 'em
in a container. Just watch the material used in the container!
Clear skies,
Bill
-----Original Message-----
From: sf-bay-tac-bounces@No-Spam [mailto:sf-bay-tac-bounces@No-Spam] On
Behalf Of Richard Crisp
Sent: Friday, October 14, 2005 9:14 PM
To: The Astronomy Connection
Subject: Re: [TAC] OT: Non-gassing out foam
try this site, Julius
----- Original Message -----
From: "Szaki" <szaki10@No-Spam>
To: "TAC" <sf-bay-tac@No-Spam>
Sent: Friday, October 14, 2005 8:35 PM
Subject: [TAC] OT: Non-gassing out foam
>I think this subject's been on here for discussion before.
> Any one has info, where can I buy non-gassing out foam to pack/store
> optics?
> Thx, Julius
>
>
Received on Fri Oct 14 22:08:07 2005