Thistle Hardwall 25kg. Thistle Hardwall undercoat plaster is dry bagged Gypsum powder that should be mixed with water. Hardwall has a High impact resistance and quicker drying surface Suitable for application by hand or mechanical plastering machine to most masonry backgrounds. Once dry, Multi-Finish is used by many plastering professionals as their prefered choice of finishing product. Multi-finish can be decorated on to, taking care to prime any fresh plaster before applying any top coats of decoration in the usual manner. Thistle Hardwall is manufactured by British GypsumBritish Gypsum suggest the following-Nominal Weight per bag = 25kg Coverage per bag = 3m2 at 11mm Setting time = 1.5 - 2 Hours
