[PSUBS-MAILIST] Foam preperation

[Cliff Redus via Personal_Submersibles]

 Brian, I have been tied up and have not had a chance to follow this thread but I wanted to make sure you understand that unless this pour-able 2 part foam has a filler like 3-M's glass micro-spheres or some kind of incompressible macrosphere, then while the foam may appear rigid, it would compress when subjected to deep water and thus your buoyancy would be reduced.   I don't think this is a replacement for syntactic foam if that is what you are doing.  Can you send a link to the foam you are using?
Best Regards  
    On Wednesday, June 26, 2019, 10:30:48 PM CDT, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Hi everybody,                                   I poured a small test piece of that 16 lb foam, man that stuff  gets as hard as a rock !  very dense , and very light.   This pouring of the foam is not going to be as straight forward as I thought,  The barrier to contain the foam is working out good, I'm just using wood and thin  1/8" luan ,  then I'm covering that with 4 mil flexible plastic ( heavy garbage type bag)  so the foam won't stick to it.  But I'm worried that any little gaps I have and the liquid foam might run out the bottom of those areas before it starts foaming, so I'm cramming big blankets ( cheap moving blankets from harbor freight)  in tight to contain any foam.  That way I can get the cavity that I'm trying to fill completely maxed out.  Waiting for an 80 + degree day  .   
Brian


--- personal_submersibles at psubs.org wrote:

From: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Foam preperation
Date: Mon, 24 Jun 2019 16:12:46 -0700

My first batch of foam cam today !  yay !   two five gallon pails, A and B,  should be interesting !
Brian


--- personal_submersibles at psubs.org wrote:

From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
To: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Foam preperation
Date: Fri, 21 Jun 2019 17:47:56 +0000 (UTC)

 Brian,Did you find foam to fill the void?Hank
    On Thursday, June 20, 2019, 8:30:55 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Kind of unnerving drilling holes in my boat !

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