annajeannette wrote: the old paint had syante in them which is not good for your heath SO forget your old type paints
RECENT type paints have isocyanates in them, which is what I think you are referring to ?
That stuff is dangerous. (In 2 pak and enamel hardner. )
Old type enamels which were oven baked didn't though - although they had lead in them, which has been banned.
Industrial enamel is still available in this neck of the woods, no nasties in it, its rather soft though,
and takes years to get any hardness to it...
Metallic paints as such, where you could see the metal flakes didn't really commonly appear until the 1960s.
Nortons and Triumph called those early 1950s paints "metallic sheen" or "polychromatic" - it had aluminium or glass in it, so finely ground it was just a powder...