On Sun, 3 Jul 2005 21:21:10 +0100, "Ron Ireland"
wrote:

Does anyone know why white hammered Hammerite is a very light grey instead
of white,

Because it's hammered. There's a semi-metallic pearlescent additive in
there too, which is finely flaked aluminium. Where it settles out, it
gives the pearly sheen to the "hammers". Where it's less dense it just
gives an off-white tinge.