C Roberson Acrylic Gold Size prepares a surface for gold and metal leaf and bronze powders. Brushed onto a non-porous surface or one sealed with shellac varnish, it effectively acts as an adhesive, ready in about 20 minutes although it will remain open for up to two days. You’ll find C Roberson Acrylic Gold Size easy to use and an essential part of any gilding work. Use with: Gedeo Mirror Effect Metal Leaf Packs C Roberson's Imitation Gold Metal Leaf