Gold Size
An oleo-resinous varnish or water 
based which dries quickly to a tacky stage for applying gold leaf.
Graining Comb
Graining comb can used, for producing wood graining effects by wiping out some of the wet scumble glaze.
Graining Rocker
Graining rocker is for producing the wood heart and grain effects with scumble Glaze.
Grasscloth Wallpaper
Grasscloth wallpapers are produced from natural fibres including, Hemp, Jute, Bamboo, Seagrass.
Normally woven by hand onto Rice paper using fine cotton threads.
Grind
The degree of dispersion that has taken place during the manufacturing process. Finishing paints are ground (dispersed) more finely than primers.
Grinning Through
The showing of underlying coats through the top coating due to the finishing coat being low in opacity.