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.
Decorative 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 1 year.
Clean up and dilution is with water.
Currently available only in neutral, but can be colourised with acrylic colourants. We recommend Polyvine Universal Colourants.
