Re: Potting on the Cheap (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 8 Sep 2003 11:35:10 -0600
From: Gomez <gomez@xxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Potting on the Cheap (fwd)


On Saturday, September 6, 2003, at 09:10  PM, High Voltage list wrote:

>
> From: Matthew Smith <matt@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Potting on the Cheap
>
> [snip]
> Once the boards are made, I'd like to coat the strings with something
> to
> stop them getting damp/dirty with the risk of flash-over.
>
> I was wondering if anyone had any experience using silicone bath
> sealant
> in this application.

  Regular household RTV such as bath sealant contains a lot of acetic
acid,
which is pretty corrosive.  I'm not sure you would want to use that.
I've
got brass parts that were turned green by RTV applied by a previous
owner
of some HV equipment.  I would suggest using either the dab-on liquid
corona
"dope" obtainable at TV repair centers and electronic supply companies,
or
immersing the whole assembly in oil.