[PSUBS-MAILIST] Group purchase of buoyancy foam?

[Alec Smyth via Personal_Submersibles]

Hi Dave,

I was thinking the 15 lb/ci one that goes to 700 feet uncoated. I’ve no idea the shipping cost, but hopefully they’d ship part of the order to me and part to you, which should be much cheaper than if I reshipped without access to commercial rates. Something I neglected to mention is that you don’t need to get your pieces in 2.75” thickness - it could be one piece 5.5” thick instead, which might give you some flexibility.

Best,

Alec


> On Jan 3, 2019, at 4:06 PM, David Colombo via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Hi Alec,
> Which density are you thinking? Also what would be the shipping cost be to California?
> Best Regards,
> David Colombo
> 
> 804 College Ave
> Santa Rosa, CA. 95404
> (707) 536-1424
> www.SeaQuestor.com
> 
> 
> 
>> On Thu, Jan 3, 2019 at 8:44 AM Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Hi guys,
>> 
>> I want to add 120lbs of buoyancy for Shackleton for fresh water operations, and am considering a material that is far cheaper than syntactic foam:
>> 
>> https://www.generalplastics.com/products/r-3300?_vsrefdom=ppcgoogle&ex=ccfxuh-eep549-oi6d57&gclid=CjwKCAiAgrfhBRA3EiwAnfF4tguYtTnBvjnUAv6sLRpBMFLlhnHIu87eS-CqqhHoh6POiHTs9LEYWxoCGDoQAvD_BwE
>> 
>> It comes in flat panels, available in several densities. It can be cut, sanded, and used as is to the rated depth, but the depth rating doubles if you coat it with epoxy paint. Here is an article describing its application.
>> 
>> https://sea-technology.com/feature-article-low-density-polyurethane-foam-for-subsea-buoyancy-systems
>> 
>> I just got off the phone with the vendor, discussing how my dimensions can most efficiently come out of the standard sizes in which it is produced, and the bottom line is that I would order two panels measuring 80x11x2.75 inches. But here's the thing, they have a minimum order of $1500, and that is reached by making it FOUR panels instead of my two. 
>> 
>> Would anyone be interested in joining me to make a joint purchase?
>> 
>> Thanks,
>> Alec
>> 
>> 
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