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Faux Finishing: Glazes

The single most important faux painting technique is glazing. When glaze is applied over a base coat it will add depth and radiance, changing the base color without obscuring it.

From one to four different glazes may be applied to a wall in varying colors or tones depending on the intended results. Once that layer is dry it is possible to apply another layer of glaze. For example, you could add a patina of age by darkening the edges of a wall for a very dramatic effect.

So, what role does glazing play in interior design? All rooms are an interplay of shapes, colors, light, texture and patterns. The most effective interiors are ones in which these elements don’t compete strongly with each other for your attention, but rather exist in a hierarchy from dominate to subtle. The architecture of the room is usually the most dominant and forms a geometric pattern. It could be from a repeat pattern of windows or a coffered ceiling.

Next are probably the fabrics, both their colors and patterns. Finally, wall finishes and seemingly solid color surfaces such as tile or carpeting. (Tip: Try squinting your eyes when analyzing a room to reduce the detail and see what patterns appear.)

Glazes can add depth and/or subtle tones of color to walls. The variations in the glaze treatment can range from the softness of a parchment to the boldness of ragging. Or a more formal effect can be achieved with vertical stripping or strié. (Strié is a technique where the glaze is rolled on the wall and a brush is drawn through it from top to bottom creating thin vertical lines.)

Using a stencil a repeat pattern may be hand stenciled over an entire wall using glaze. The end result will be much like a wall paper pattern but without the seams and it will have the variation inherent in any hand done process. The pattern may also intentionally fade in and out.

Glaze is the basic material used in faux and decorative finishing techniques. Glaze may be defined as a translucent liquid (containing binder and solvent) to which pigment has been added. The pigment or color is suspended in the glaze so that it maintains its intensity and is not diluted by the glaze. For example, if you add green pigment to a glaze the green maintains its intensity. If you added green to white paint you would have a paler green.

Glaze is applied over an opaque base coat of paint. Its translucency allows the base color to show through, strongly or faintly. The application technique such as ragging, stippling, sponging, or dragging determines the visual texture of the glaze.

The most important property of a glaze is its drying time. Glaze must remain “open,” long enough for the artist to manipulate the glaze, often several times. Additionally, a “wet edge” allows for each area of the wall to be blended into the previous area to avoid lap lines. Formerly this was not a problem because all virtually all paints were oil based and therefore slow to dry. Now we can achieve the same results using water based polymer resins (known as latex or acrylic products) without the attendant odor and environmental problems of oil based paint and its mineral spirit solvent.

It is also important that a glaze be as transparent as possible. The more transparent the glaze is the greater illusion of depth that can be achieved. Most glaze mediums are whitish in their liquid form and dry to varying degrees of transparency. To illustrate, consider the difference between granite and precious stones. Granite is an opaque material; all light is reflected off the surface. Diamonds on the other hand reflect light from their interior as well as their surface.

Glazes tend to have low strength and are therefore susceptible to damage especially due to cleaning. Higher quality glazes contain more binder to add surface strength and in some applications such as kitchens and bathrooms a clear protective finish is the best solution.

Allen Monsarrat is a faux and decorative finisher who works in Knox, Blount and surrounding counties. He may be reached at (865) 363-2722.

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