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Home > Forums > Electrical / Electronic Engineers > Activities > Circuit Design Forum

PCB Potting/Encapsulation

Read More Threads Like This One

obruno (Electrical)

1 Aug 06 19:15

I am new to the world of potting PCBs. Where can I find, website or book, for general guidelines to follow when selecting the encapsulation material? The board will input 280VAC max and be no more than 4W out. Any additional information will be greatly appreciated.

itsmoked (Electrical)

1 Aug 06 20:15

You find the informational material at the companies who sell it since it is highly dependant on each recipe.

Master Bond is one (hideously expensive [over priced] source).
Humiseal is a good company.
3M is another.
MG Corporation is probably the most reasonable priced stuff. Works well for me.

Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com

obruno (Electrical)

2 Aug 06 16:24

Did you mean MG Chemicals as the MFR, I couldn't find MG Corp. Well thanks. I found a very helpful cite, http://www.pottingsolutions.com/my%20site/Technology/Technology.htm
This cite answered many questions.

Are there any other resonable priced 2 part encapsulants?

itsmoked (Electrical)

2 Aug 06 16:33

I'm sorry obruno I was distracted between going to the chemical cabinet and returning to my answering you and hence forgot the "chemical" in 'MG Chemical'.

MGChemicals, Ltd.

A very good company with an excellant web site and 1/5 the prices of "Master rippoff".

http://www.mgchemicals.com/products/potencap.html

Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com

sreid (Electrical)

2 Aug 06 17:29

Another large manufacturer is Dolphs.

http://www.dolphs.com/

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