[UK-CONTEST] OT: Waterproofing

[Clive GM3POI]

Hi Ray,
    I did try Liquid Electrical tape here about 10 years ago and found that 
with exposure to the Weather it breaks down and peals off the connection 
covered.
    I would suggest instead using regular black insulating tape plus a layer 
of  3M Scotchkote liquid electrical coating. It is best to put on a layer of 
tape then Scotchkote, let it nearly dry then add another layer of tape plus 
another coating of Scotchkote.
    This works here in the extremes of the Orkney Weather, and would also 
suggest you find another method of matching the yagi other than a Gamma 
match which tend to always end up getting rain into them.  73 Clive GM3POI
----- Original Message ----- 
From: "Ray Hills" <g3hrh at btinternet.com>
To: <uk-contest at contesting.com>
Sent: Sunday, June 14, 2009 7:36 PM
Subject: [UK-CONTEST] OT: Waterproofing


> Does any one have any experience of using the "liquid waterrpoofing tape"
> originating in the US but now available over here from SOTA beams?  I need
> to know whether it is OK at 432 MHz or whether the losses are excessive.
> The alternative is conventional self-amalgating tape but that is on the
> bulky side at UHF.  I need to waterproof the gamma match connections on a
> set of yagis, particularly where the plastic tube slides over the inner 
> and
> inside the outer of what makes up the series capacitor- if you see what I
> mean!
>
> Ray G3HRH
>
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