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Where to find experts on potting compounds?

Hi

I wrote this post a couple of months ago (shown at the end below):

Well - we have evaluated several potting compounds and are in the process of testing some of them. But I would like to get some expert help on this topic of potting compounds for submersion of electronics. We have tried companies in denmark, but none that could give us straight answers :-(

Does anyone know a consulting company or perhaps a unirversity with that kind of knowledge abroad (preferable Europe and the US?

Thanks

Klaus

POST:

QOUTE

I'm working on a pump that is suspended in water and I need to add some

electronics to it (not more than 1 meter water level)

My initial thought was to house the electronics in a sealed plastic/rubber enclosure, but someone pointed out that plastic/rubber might over time absorbe water and render the electronics un-usable

Anyone got details of the behavour of plastic enclosures exposed to long periods of total suspension i water?

UNQUOTE

Reply to
Klaus Kragelund
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Hello Klaus,

I'd ask larger companies such as 3M that make potting compounds for the telecom market (where stuff usually needs to tolerate water):

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This link will probably line-break but it's their Utilities & Telecommunication business unit.

Others:

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In Denmark you could probably look for larger marine suppliers.

Regards, Joerg

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Reply to
Joerg

I would be inclined to drop MG Chemicals from the list of potential potting compound suppliers, based on my experience with their products, and add MasterBond

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which has excellent technical support, and although they are a US company like 3M.

Reply to
Glen Walpert

Have you tried asking manufacturers of potting compounds for marine use? If they don't have your answers, they should be able to offer referrals.

These guys are global, UK based:

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Cheers, Richard

Reply to
Richard H.

Not specifically a potting compound, but you might try the Smooth-on brand polyurethane resins, as I've been meaning to after having less success than I hoped for with Polytek. The right PU resin is as flexible as you choose and incredibly tough - vis roller-blade wheels. Make sure you get one that mixes with low viscosity so you can vacuum it and get all the bubbles out.

Reply to
Clifford Heath

do try sci.polymers

--
JosephKK
Gegen dummheit kampfen die Gotter Selbst, vergebens.  
--Schiller
Reply to
joseph2k

On Sun, 07 May 2006 23:02:34 GMT, joseph2k Gave us:

Try a product called "CONAP".

Can't miss. Polyurethane.

Reply to
Roy L. Fuchs

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regards, Gerhard

Reply to
Gerhard Hoffmann

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