The art to a good quality finish is in the preparation. The size should be applied to a perfectly smooth base as the slightest imperfection will show in the final work. If applying to a red oxide painted surface, prepare the substrate by sanding with 400-600 grit abrasive paper and remove all the dust with a tack rag. The size should be applied with a soft brush held at 450 to the stroke to avoid brush marks. The leaf should be applied to the size while it is still just tacky. The drier the size the brighter the shine but too dry and the leaf will not adhere. A taut knuckle when rubbed across the size should produce a slight squeak when the size is ready.