Gold Leaf is a material used in fine arts to add a luxurious and reflective element to paintings and mixed media. There are two types of gold leaf: genuine gold leaf, which is made from real gold and does not tarnish, and imitation gold leaf, which is made from copper-zinc alloys and is prone to tarnishing. Golden Artist Colors offers a Gold Leaf Size, a thin liquid that is used to adhere gold leaf to surfaces. The company also recommends using their MSA or Archival Varnishes to protect imitation gold leaf from tarnishing, as waterborne acrylics can accelerate oxidation. Artists can paint on top of gold leaf with acrylics, but intermediate coatings are required on most imitation leafs to reduce tarnishing. Genuine gold leaf, on the other hand, can be painted over with acrylics directly. Golden Artist Colors provides technical support and education on the use of gold leaf in fine arts, and their products are available in various countries, including Australia, through distributors such as Langridge Artist Colours. (Source IDs: multiple)