| Yes Chromate primer is just that made from zinc,it is a form of sacrificial type application in that not only does it protect the metal but actually etches into it,it is used by mixing a dilute form of acid with yellow or green coloured chromate,awful stuff to spray,get it too dry and it does not etch the metal and can flae off,too thin and it works too violently.
U.S Air Force types used a greenish shade,British aircraft was a sort of dull lemon yellow with a tinge of green,there are many variations in colour shade.
There is also a synthetic version made from oil based products that stinks.
__________________ 'And there I was oil on my goggles from a broken pipe,then I looked at the altimeter,all I could see was the makers name !' www.wonwinglo.scale-models.net/ |