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Article #1059

Re: "potting" electronic circuits

#1059
From: Mike Carter
Date: Thu, 03 Aug 1989 05:19
28 lines
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Several years ago I made my pocket money by creating "Frozen Wildlife"
abd glow-in-the-dark-key-chain-danglers.
Go catch a few Huntsman spiders, douse them in Chloroform and pin them out
until they started to dry.
Next, the local hobby shop stocked a good supply of Resin and catalyst.
Add the two in the prescribed way, drop "herman" into mold and pour.
 
You can buy plastic moulds or make one out of plasticene (SIlly Putty)
and hobby knife it to the shape desired. One thing to watch for is 
adding too much or too little catalyst. If you add too much the 
thermic reaction cooks whatever's inside and bubbles form. Too little and
the stupid thing may never fully catalyze and remain sticky.
Far too much catalyst caused the plastic to crack while curing.
You can also purchase dyes or colorants to add to the goop just before
pouring.
 
	
Several manufacturer's use this in an attempt to force premature obsoleteness
of modem & multiplexer power supplies and rip both of your arms off for a
replacement. Of course, the cure is ACID.
 
	-Mike
-- 
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= Mike Carter  N7GYX, Phoenix AZ| Q: Why did the Chicken cross the road  ?  =
= hplabs!hp-sdd!crash!xroads!wiz| A: To ESCape the Main Menu .              =
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!mailrus!ncar!asuvax!hrc!xroads!wiz
References: <1989Aug2.182630.444@iex.uucp>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!mailrus!ncar!asuvax!hrc!xroads!wiz
From: wiz@xroads.UUCP (Mike Carter)
Newsgroups: sci.electronics
Subject: Re: "potting" electronic circuits
Summary: Try Liquid Plastic + Catalyst
Message-ID: <780@xroads.UUCP>
Date: 3 Aug 89 05:19:55 GMT
References: <1989Aug2.182630.444@iex.uucp>
Reply-To: wiz@xroads.UUCP (Mike Carter)
Distribution: usa
Organization: Crossroads, Phoenix, AZ 85046
Lines: 28