[edit] Materials

Oil-based glaze:

• one part matt/flat enamel

• one part scumble medium

• one or two parts turps (white spirit)

Water-based glaze:

• two parts acrylic paint

• one part water-based scumble medium (don't use water unless the glaze is very thick)

[edit] Tools Needed

• brush or roller

• stipple brush

• pieces of lint-free calico

[edit] Method

I The finish on which you wish to apply the overglaze should have been allowed to dry overnight. Apply the overglaze with a brush or a roller, stippling to remove any brush or roller strokes, and then start texturing with a piece of washed, lint free calico.

2 Allow some of the background to shine through. Do not cover the background completely with the overglaze, the application is simply to soften or enliven. Make sure you pick up any drips with the calico.

3 The overglaze will be absorbed into the background quite easily and you will find it adds a lovely amorphous quality to the original glaze.

4 Oil based scumble medium is sensitive to ultraviolet light in that it yellows if covered. If you wish to move your pictures after they have been hung for a year or so, you may find that there are yellow patches on the wall. Once these areas are again exposed to ultraviolet light, these yellow patches will disappear in about a month. The same applies to a furniture surface which has been finished with the scumble medium.