[Marta Prime]

I thought this was interesting information on Gamblin Metalic Paints from their web site:

GAMBLIN ARTISTS COLORS
ARTIST GRADE METALS

Rich Gold: Made from real metal powder and an alkyd resin binder. Rich Gold is rose gold. Use it in place of gold leaf, painted over Venetian Red. Excellent for painting frames. Can be mixed with transparent oil colors or thinned out and used for a sparkling glaze. Thin with a combination of Galkyds and OMS. Do not thin with turpentine.

Pigment: Bronze powder(PM 2)
Vehicle: Oil Modified Alkyd Resin
Lightfastness I Series 4
OPAQUE

Pale Gold: Made from real metal powder and an alkyd resin binder. Pale Gold is green gold. To use it in place of gold leaf, paint over Olive Green. Excellent for painting frames. Can be mixed with transparent oil colors or thinned out and used for a sparkling glaze. Thin with a combination of Galkyds and OMS. Do not thin with turpentine.

Pigment: Bronze powder(PM 2)
Vehicle: Oil Modified Alkyd Resin
Lightfastness I Series 4
OPAQUE

Copper: Made from real metal powder and an alkyd resin binder. Copper looks like crushed pennies. Excellent for painting frames. Can be mixed with transparent oil colors or thinned out and used for a sparkling glaze. Thin with a combination of Galkyds and OMS. Do not thin with turpentine.

Pigment: Copper powder(PM 2)
Vehicle: Oil Modified Alkyd Resin
Lightfastness I Series 4
OPAQUE

Silver: Made from real metal pigment and an alkyd resin binder. Excellent for painting frames. Can be mixed with transparent oil colors or thinned out and used for a sparkling glaze. Extend with Galkyds. Thin with a combination of Galkyds and OMS. Do not thin with turpentine.

Pigment: Aluminum powder(PM 1)
Vehicle: Oil Modified Alkyd Resin
Lightfastness I Series 4
OPAQUE