Comments on: Hard filler (plastic?), and how to get rid of it. Used to seal electronics in place.? http://www.rechargeabletoothbrush.net/hard-filler-plastic-and-how-to-get-rid-of-it-used-to-seal-electronics-in-place/ All The Brushing Power You Need Sun, 04 Sep 2011 18:55:13 -0500 http://wordpress.org/?v=2.8.6 hourly 1 By: Rob T http://www.rechargeabletoothbrush.net/hard-filler-plastic-and-how-to-get-rid-of-it-used-to-seal-electronics-in-place/comment-page-1/#comment-166 Rob T Thu, 22 Jul 2010 20:14:49 +0000 http://www.rechargeabletoothbrush.net/hard-filler-plastic-and-how-to-get-rid-of-it-used-to-seal-electronics-in-place/#comment-166 The stiff is called "potting compound". It works in a similar way to epoxy adhesives (e.g araldite). You mix two liquids together and pour them into the container around the circuit, and they react together to form a solid block of rubbery or glassy material that prevents any failures due to vibration or shock loading (i.e.if the device is dropped), the electronics are completely sealed against mosture, and the compound is chemically inert. It expands as it sets, so it bonds itself to everything it is in contact with. Basically, there isn't any way to get rid of it. That's the reason why it was put there! I doubt whether acetone would have any effect at all (though I'll take the other answerer's word for it that acetone dissolves credit cards). If you want to try acetone, remember the liquid and the vapor it gives off are both VERY flammable, and the vapor is a serious health hazard if you breathe too much of it.. The stiff is called "potting compound". It works in a similar way to epoxy adhesives (e.g araldite). You mix two liquids together and pour them into the container around the circuit, and they react together to form a solid block of rubbery or glassy material that prevents any failures due to vibration or shock loading (i.e.if the device is dropped), the electronics are completely sealed against mosture, and the compound is chemically inert.

It expands as it sets, so it bonds itself to everything it is in contact with.

Basically, there isn’t any way to get rid of it. That’s the reason why it was put there!

I doubt whether acetone would have any effect at all (though I’ll take the other answerer’s word for it that acetone dissolves credit cards). If you want to try acetone, remember the liquid and the vapor it gives off are both VERY flammable, and the vapor is a serious health hazard if you breathe too much of it..

]]> By: Mike http://www.rechargeabletoothbrush.net/hard-filler-plastic-and-how-to-get-rid-of-it-used-to-seal-electronics-in-place/comment-page-1/#comment-167 Mike Thu, 22 Jul 2010 20:14:49 +0000 http://www.rechargeabletoothbrush.net/hard-filler-plastic-and-how-to-get-rid-of-it-used-to-seal-electronics-in-place/#comment-167 Try a series 15-20 second acetone baths. It works for me when i want to say remove smart chips from cards or what not. Its pretty potent...don't use nail polish remover its not pure. Go to a hardware store and its in the paint section by the thinner. As long as its not neoprene or nylon it should get rid of it pretty well. By rule, the harder the plastic the faster the acetone will dissolve it. Try a series 15-20 second acetone baths. It works for me when i want to say remove smart chips from cards or what not. Its pretty potent…don’t use nail polish remover its not pure. Go to a hardware store and its in the paint section by the thinner. As long as its not neoprene or nylon it should get rid of it pretty well. By rule, the harder the plastic the faster the acetone will dissolve it.

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