[PSUBS-MAILIST] Group purchase of buoyancy foam?

[David Colombo via Personal_Submersibles]

Hi Alec,
I think you mean 15#cft. To place the order, they would be cutting down
their standard block 10x24x100 to your required dimensions? I need to
figure out area amount I will need for my wings, but I think a block that
was 5.5x24x100 could work for me. I'm picking up some 36x48x96 blocks of
foam tonight to start the exoskeleton shaping.Once I have the rib form
assembles on the jig, I'll know for sure the volume I would need. What is
your time line to place the order?

Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com



On Thu, Jan 3, 2019 at 2:59 PM Alec Smyth via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> 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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