"Martin" wrote in message
...

For at least 30 years yellow chromate has been used between stainless
steel
components and aluminium on boats to prevent corrosion.


Back in 1952 when I started my Apprenticeship in Marine Electrical
Engineering, that practice was in use then on warships we were
building/converting.

So for future reference, you can say 'for at least 50 years' :-))


--
Mike

The Royal Naval Electrical Branch Association
www.rneba.org.uk
Luxury Self Catering on the Isle of Wight?
www.shanklinmanormews.co.uk