Alt-BEAM Archive

Message #03076



To: Jacob Booth J.Booth@mackillop.acu.edu.au
From: "George Rix" rix.g@bmts.com
Date: Fri, 07 May 1999 21:56:37 -0400
Subject: [alt-beam] Re: Multiple Inputs for Nv neurons


> Just be sure to use 'neutral cure' sealant... A lot of silicone sealants
> give off acetic acid whilst they cure. Whilst this isn't a stong acid, with
> many different types of metal in a typical circuit (lead, tin, copper, iron
> etc) it is only a matter of time before they corrode, and then the problem
> is nicely sealed inside where it is hard to fix. Also be careful that some
> neutral cure products sold cure into a 'nuetral product' but still may give
> off the acetic acid WHILST they cure... meaning they won't help at all!
Yeah, my stuff is the stuff you mentioned: Neutral Cure, otherwise my fish
would all be dead =)
> Another sealing solution (but permanent) is epoxy resin. You can thin it out
> with methylated spirits and use it like a thick waterproof paint, or mix
> with microballoons to make a light and strong filler. Microballoons can be
> purchased at a model hobby shop...
If I only could find some in my price range. Free, that is =)
> Another thought.. if you still want to use silicone, and can't find any
> neutral products cheap enough (now you know why dow corning neutral potting
> RTV kits are so expensive) maybe you can use some PCB laquer spray on the
> entire circuit before sealing it up... it should provide some corrosion
> resistance. I think I will try this one for my next project.
My mom buys it for herself, and I get what she doesn't want. I have about
two full tubes of it =)
Like PlastiDip? I can't find any of that.
> Good luck,
> Jacob
Signing off,
Rob Rix
___________________________________________________________________________
Newsflash! A scientific report has just come in from Montreal stating that
humans are unpredictable and volatile. If you spot them contact the local
authorities. Do not attempt to approach them, as they may blame you for
making crop circles and fire high-speed explosive shells at you. Take care!

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