"Andy Dingley" wrote in message
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On 22 Nov, 01:15, wrote:

Easy to copper plate the things.

Easy yes, but it will also _encourage_ corrosion.
If you want to copper plate, your easiest approach is often to nickel
plate it first. Try reading the Caswell book for advice.

Avoid Jenolite,

agreed


Mostly though, I'd look askance at the quality of your zinc rich
primer. Try Davids 182 for a good one.

I use Bondaprime, much favoured by the boating-fishing fraternity.
This is a rusty _steel_ milk churn I painted with it some 20 years ago and
its been outside ever since, never did get round to giving it a top coat.
but a good test as to how good a primer is.

http://i46.tinypic.com/2crt82t.jpg

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