I have a problem with corrosion on my TV aerial.
It's made mostly from aluminium but is held together with 3/16 inch
galvanised steel screws, as are all the aerials that I see anywhere.
There are 11 round elements, 6 of which are electrically connected
alternately together by flat pieces of aluminium giving a total of 24
pieces of aluminium that touch each other, clamped together by the
About every six months TV reception gets bad, and I fix this by taking
the aerial apart, sanding the surfaces and putting petroleum jelly on
them. I used to use CRC but that lasted only a month.
It's really difficult to do this because the aerial is 10 metres up on
a roof with a 60 degree slope. TV reception is really bad here so I
need a large outdoor aerial as high as possible.
I have tried to get aluminium screws but without success. They would
probably be too weak anyway.
I imagine that stainless steel screws would still cause a problem.
I have considered taking it somewhere to weld the connections together
but it's about 2 metres square and fragile and rather hard to
Any brilliant ideas?
18 years ago