This looks promising. /Ake -----Ursprungligt meddelande----- Fr=E5n: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]F=F6r Win Wiencke Skickat: den 22 juni 2004 01:28 Till: PICLIST@MITVMA.MIT.EDU =C4mne: Re: Material to fill a box > I have looked around for electronic filling > material and obviously found the epoxy type. But it's so damn >expensive. Is there some lower cost material one can use? I came across a relatively inexpensive rigid urethane from an outfit called GoldenWest (http://www.goldenwestmfg.com) -- lots of other outfits sell it too. It warms when curing but nothing unusual. The normal application is for architectural impediments, cast wall plaques and the like. I used it to cast protective bezels for some hardware. It cures in minutes and conceivably could be cast in such a way that it becomes the housing. Obviously there are a few questions about thermal properties, but it's a real good dielectric and seems quite inert. I'm tempted to try the stuff as a way to pot and enclose in one operation, but I've never actually done it. Win Wiencke Image Logic Corporation -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.