Re: Silicone Sealants in Electrical Applications (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: <sroys@xxxxxxxxxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 06 Feb 2005 19:08:16 -0500
From: Luc Benard <ludev@xxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Silicone Sealants in Electrical Applications (fwd)

Hi Matthew,

I saw that nobody reply to your message I'm not an expert but may be I 
could help, silicone is a good insulating material when it's dry, the 
red color one call RTV is supposedly better for HV and better resist 
temperature up to 315C ( 600F ). Some High temp. and HV device are 
potted in this kind of silicone, but they use a liquid form of it and I 
think with a different hardener, in the past I tried to find this 
product for a similar usage but I think it's only available in large 
quantity for industrial usage. May be you could try potting with RTV 
but it'll be hard to get ride of the bubble even with vacuum and you'll 
need to wait a long time for the product to completely dry and lost all 
the acetic acid ( corrosive and conducting ).

Cheers,

Luc Benard


On 3-Feb-05, at 5:28 PM, High Voltage list wrote:

> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Tue, 01 Feb 2005 11:09:52 +1030
> From: Matthew Smith <matt@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Silicone Sealants in Electrical Applications
>
> Hi All
>
> Can anyone comment on the suitability of silicone sealants (I've got 
> one for
> metal roofs and gutters) in high voltage applications?
>
> Whats more, what are they like with heat?
>
> My interest is in potting/mounting.
>
> Cheers
>
> M
>
> -- 
> Matthew Smith
> Kadina Business Consultancy
> South Australia
> http://www.kbc.net.au
>
>
>