Where to find experts on potting compounds?

Question

HiI wrote this post a couple of months ago (shown at the end below):Well - we have evaluated several potting compounds and are in theprocess of testing some of them. But I would like to get some experthelp on this topic of potting compounds for submersion of electronics.We have tried companies in denmark, but none that could give usstraight answers :-(Does anyone know a consulting company or perhaps a unirversity withthat kind of knowledge abroad (preferable Europe and the US?ThanksKlausPOST:QOUTEI'm working on a pump that is suspended in water and I need to add someelectronics to it (not more than 1 meter water level)My initial thought was to house the electronics in a sealedplastic/rubber enclosure, but someone pointed out that plastic/rubbermight over time absorbe water and render the electronics un-usableAnyone got details of the behavour of plastic enclosures exposed tolong periods of total suspension i water? UNQUOTE

Joerg · Accepted Answer

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):This link will probably line-break but it's their Utilities & Telecommunication business unit.Others:In Denmark you could probably look for larger marine suppliers.Regards, Joerg

Glen Walpert · Answer

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.

Richard H. · Answer

> Well - we have evaluated several potting compounds and are in theHave 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: Cheers,Richard

Clifford Heath · Answer

Not specifically a potting compound, but you might try theSmooth-on brand polyurethane resins, as I've been meaning toafter having less success than I hoped for with Polytek.The right PU resin is as flexible as you choose and incrediblytough - vis roller-blade wheels. Make sure you get one thatmixes with low viscosity so you can vacuum it and get all thebubbles out.

joseph2k · Answer

do try sci.polymers-- JosephKKGegen dummheit kampfen die Gotter Selbst, vergebens.  --Schiller

Roy L. Fuchs · Answer

On Sun, 07 May 2006 23:02:34 GMT, joseph2k Gave us:  Try a product called "CONAP".  Can't miss.  Polyurethane.

Gerhard Hoffmann · Answer

regards, Gerhard

Where to find experts on potting compounds?

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