[PSUBS-MAILIST] material question

[emile via Personal_Submersibles]

Thanks for the respons .

Testing sounds logical but it should be long term and it is difficult to measure the water ingress.

 

Polyester yachts do have a osmosis problem when they sit all year in the water. 

 

We use thin fiberglass plate in the rim thrusters and we want to use it in a deep diving ROV. 

 

Br, Emile

 

Van: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] Namens Alan via Personal_Submersibles
Verzonden: woensdag 9 mei 2018 23:39
Aan: Personal Submersibles General Discussion
Onderwerp: Re: [PSUBS-MAILIST] material question

 

Hi Emile,

my brother-in-laws fibreglass yacht has been sitting in the harbour

for at least 30 years, so pretty impervious to water.

The glass in the fibre would not crush, but the resin around it would squash

a little under that pressure. I would think the resin would seal any exposed 

fibres by squashing around them when put under that kind of pressure.
What are you sending down that deep?

Alan
Sent from my iPad


On 10/05/2018, at 5:34 AM, emile via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Hi All, 

 

Material question:

Can prefabricated epoxy/glassfibre plate material (like PCB) withstand 5000M / 18.000Ft  presurised water? 

Or will it be impregnated after a while?

 

Thanks in advance

 

met vriendelijke groet, with best regards

 

Emile D.L. van Essen

 

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