Surface Priming – Good surface preparation is the base for beautiful Kolcaustico walls. Remove any surface imperfections. Seal new sheetrock or joint compound skim coat with a flat latex primer. Previously painted surfaces should be prepared in the same manner required by a high quality paint finish. The sealed surface should be clean, dry and free of dust and wax.
The primer or base coat may be tinted to establish a base color for the project. Using a tinted base coat is a costeffective way to begin the project as it may reduce the number of Kolcaustico layers. Base coats or primers should be fully cured before applying Kolcaustico. Follow the instructions provided by the primer or paint manufacturer.
One-Color Venetian Plaster Application – One or more layers of a single color of Kolcaustico are applied over a base color of latex paint or primer. The base color is subtly visible through the translucent, lightly tinted Kolcaustico layer creating a surface depth with visible texture and pattern. This is the simplest application technique requiring only one color of Kolcaustico.
The primer or base color may be tinted to match the layer of Kolcaustico or may be a complimentary color to further enhance the layering effect. This method may be left matte or waxed to a soft sheen or a high gloss. Burnishing Kolcaustico before waxing will result in a smoother and glossier finish and may also be done between layers. Mica powders mixed with wax create glowing highlights with a metallic pearlescent appearance, or a wood tone wax may be used to create shaded highlights or an antique appearance.
Multi-Color Venetian Plaster Application – Two or more layers of two or more colors of Kolcaustico, applied over a base color of latex paint or primer, produces a finish of blended colors with exceptional depth. The primer or base color may be tinted to match the first layer of Kolcaustico or may be a complimentary color to further enhance the layering effect. It is important to pick two colors similar in hue and value, such as peach and ocher, or pale blue and light green.
Similar to the single color application, a multi-color Kolcaustico application may be burnished, left matte or waxed to a soft sheen or a high gloss. Mica powders may be mixed with wax to create glowing highlights with a metallic pearlescent appearance, or a wood tone wax may be used to create shaded highlights or an antique appearance.
Surface Knife Techniques – Every Kolcaustico application is a signature piece for the artisan, representing artistry of both color mixing and blading technique. The movements and pressure used with the blade create the unique qualities of a hand-applied finish. The patterns created with the blade will be your signature and will mature as you work on projects. Practice your technique before approaching the wall. Once you begin the project, view the wall as a large canvas and work across the entire surface. Avoid concentrating in one section. Your technique will change with experience and the artistry of your technique should be displayed across the entire surface.
Place a thin strip of Kolcaustico on the edge of the blade. The first pull of the blade should transfer all the material to the wall. Another light pass over the same area will move excess material and redeposit it further along the wall, thereby leaving only a thin smooth coat of plaster. Repeat until Kolcaustico thinly coats the wall. It is best to work from a corner out and from top to bottom. Allow each layer to dry to the touch, about 15 minutes, before applying the next layer. Do not overwork each layer once material begins to dry, as small scratches can form. If the material is applied too rapidly, the top layer will mix with the layer below. This can remove rather than build up material and may create a muddy appearance.
The Multi-Color Application Technique can be applied as individual colors, or by combining two colors during an intermediate pass. For this more complex presentation, place a strip of the first color on the blade, then place a second strip of the second color directly behind. Apply over the base color using your own signature style. The two colors of Kolcaustico will mingle as they transfer to the surface with traces of each tint bridging each layer. Once dry, apply a third layer using the second color. The translucent quality of Kolcaustico and this blending technique create a lustrous multi-layered surface.
Burnishing – Burnishing Kolcaustico will result in a smoother and glossier final appearance and is generally done 4-6 hours after the final application. Burnish the surface with a clean blade by lightly rubbing the surface with the lower third of the blade. Plastic blades work well on light color applications and will not leave dark streaks on the surface. Burnishing between coats will result in a highly polished finish. The best results are obtained when the surface is burnished soon after it is dry