Re: [PSUBS-MAILIST] casting acrylic origins

["Alan James" <alanjames@xtra.co.nz>]

Hi Dariusz,
I'd like to know all those details also.
I spent quite a bit of time trying to track down some acrylic resin
to have a go at casting it. But no luck at the time.
I guess if you could track down the raw material you could request
information from the supplier.
When I was casting polyester resins I had a lot of information from the
supplier on catalyst percentages, in relation to casting size
& temperatures at wich the casting was being done.
I read somewhere that the autoclave pressure was 70psi.
If you find any information on this I'd be interested to hear.
Regards Alan

----- Original Message ----- 
From: "Dariusz Hoffmann" <darekhoffmann@gmail.com>
To: <personal_submersibles@psubs.org>
Sent: Sunday, July 18, 2010 12:31 AM
Subject: Re: [PSUBS-MAILIST] casting acrylic origins


> Very interesting, Alan. But this document is lack of details, how to
> cast it. What temperatures, time and pressure inside the autoclav.
>
> This is also explained in Stachiw book, site 707, but also without
> details I mentioned above. I have a copy without a cd-rom that
> contains additional documents, maybe the info is on those documents ?
>
>
>
>
> 2010/7/17 Alan James <alanjames@xtra.co.nz>:
> > Here's another link to the origins of large acrylic castings.
> > http://www.brucebeasley.com/Apolymon/Apoly.htm
> > This is a more detailed story than my last post on Bruce Beasley.
> > It is truly impressive when you look at the scale of what he was doing
> > & the complex nature of it.
> > There's even a photo of the autoclave with North West Native American
> > art on it.
> > This next link is a paper by Stachiw to the navy outlining the benefits
> > & problems encountered with casting domes.
> > http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=AD0776587
> > Regards Alan
>
>
>
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