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Whitson’s Impasto Plaster is a versatile clay-based plaster for adding texture to any decorative finish on interior surfaces. It is easy to use and dries to a hard, durable film. It can be used to create embossing and textured finishes, can be over-coated with all paints and enhanced with glazes, waxes, gilding and protective topcoats. Alternatively, it can be used as a finish without extra coats if required and can be polished like a lime plaster.
Impasto Plaster can be applied with trowel, spatula, sponge or roller to an optimum depth of no more than 1- 2mm at a time to avoid cracking. If you want to encourage cracking, then thicker layers can be applied or you can forcefully dry the plaster with a hairdryer will give a more dramatic effect. The versatility of this product provides the capacity to mimic the look of Venetian/Marmorino plaster, Stucco Antico, antique plaster, relief effects, washed smooth stone along with a myriad of unique techniques.
Because of its unique flexibility this product is perfect for newbuild, and for off-site application of installation work. Because it flexes it can be applied to a variety of surfaces and shipped to site without concerns of delamination. Because it isn’t lime based there is no concern with incompatibility with other products.
Coverage – 3 - 3.5 sq metres per kilo for thin spatula or trowel application. Thicker applications will cover less area.
As this is a clay and acrylic medium - seal any raw substrate with a suitable primer sealer, for already coated surfaces apply Whitson’s Superior Adhesion Primer unless it is coated in an acrylic coating already.
Impasto Plaster dries in 20/30 minutes depending on the thickness of the coat applied.
It can be recoated once the film feels hard and no longer cold. To render the plaster scrubbable apply a good quality acrylic varnish.
After use cover the remaining plaster with plastic film and seal up the container, by doing so this material will keep for up to a year.
Clean up and dilution is with water.
We currently carry Decorative Plaster in neutral colour only. Recommended colourants are Universal Colourants.
Please click here to read Cait's guest blog on our site describing effects and techniques you can use while working with Impasto Plaster!
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