I don't have a good answer for you, but would still like to comment that, YES, epoxy is very water absorbing. .. Bad experience...


Sven
-----Ursprungligt meddelande-----
Från: John <jsand@PIXIE.CO.ZA>
Till: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Datum: den 19 mars 2000 19:50
Ämne: Encase PCB with epoxy, silicone or ??? (OT)


>Hello Lance & PIC.ers,
>
>
>>Date:    Mon, 13 Mar 2000 14:00:58 +1200
>>From:    Lance Allen <l.allen@AUCKLAND.AC.NZ>
>>Subject: Re: Encase PCB with epoxy, silicone or ??? (OT)
>
>>> Hi,
>>>
>>> I need to encase an assembled PIC device in a polymer block.  For
>example,
>>> place the tested PCB+components in a mould and add a polymer so it sets
>..
><snippo>
>..
>>For most non physically harsh environments (marine is
>>the worst I have ever come across) and low voltage
>>circuitry I am happy to use cheap old wax. Easy to get at
>>the components while maintaining a modicum of
>>protection from the elements.
>
>Could you elaborate a bit on the `wax'  ?
>I've seen wax used to hold parts in place in el-cheapo
>radio sets & the like, but it just looks like candle-wax,
>same stuff ?  or something more esoteric ?
>
>
>best regards,   John
>
>
>e-mail from the desk of John Sanderson, JS Controls.
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>email:                jsand@pixie.co.za
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