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High Voltage Silicone Sealant

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Category: Technical
Forum Name: Tech, Maintenance & Repairs
Forum Description: Need Help? Ask Here
Printed Date: 27 Feb 2020 at 4:41am

Topic: High Voltage Silicone Sealant
Posted By: Liam
Subject: High Voltage Silicone Sealant
Date Posted: 14 Feb 2020 at 10:41am
I had some of this before, which I think I bought from eBay, but now I can't find any for sale anywhere. Was it banned or something?

It's very handy for sealing anode cups that are inclined to discharge even after being cleaned, and I used it to seal small HV leaks elsewhere. Where can I get some now? Any help will be appreciated.

Posted By: andyman
Date Posted: 14 Feb 2020 at 10:50am

"The person you were referring to is a short, shotgun wielding nutter with a vindictive streak 3 miles long. And a Star Wars cockpit "

Posted By: ColinD
Date Posted: 14 Feb 2020 at 11:53am
I'd be more inclined to use a thin smear of HV Silicone Grease on an anode cap.   

You can easily replace the cap if it's damaged and you can redo the dope around the electrode too.

Posted By: Liam
Date Posted: 14 Feb 2020 at 2:07pm
I used to have HV silicone, but I think I threw away the remainder when the tube began to leak. I thought it would be as easy to get again as it was the first time. I'm not sure if that stuff from Farnell is for HV applications.

Meanwhile, I found this on AliExpress:" rel="nofollow -

Posted By: Purity
Date Posted: 14 Feb 2020 at 3:28pm
I've resealed around the anode cap before with some HV varnish.  I think the recommended one is Corona Dope - think you can get it on Amazon.  I used some HV varnish off eBay

Don't know if that helps or not?

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Posted By: Liam
Date Posted: 16 Feb 2020 at 9:15pm
Yeah, that Corona Dope looks like the thing. Thanks.

Posted By: Retromanic2
Date Posted: 17 Feb 2020 at 10:59am

You can get it from this site:-" rel="nofollow -

They do different colours, also sell copper wire if you need to do any yoke rewinds.

Looking For a Nintendo Cocktail Metal Coin Box.

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