gypsum powder white very quick drying bricolage - construction 680g of gypsum / 1.5 lb gypsum plaster Description: This product has a white powder. Use: The gypsum plaster is widely used in construction, to apply to the interior walls. Its use is widespread in civil architecture as a decorative element. Applications: In the mixture, the water should always be placed first and gypsum, so that it is a more homogeneous mass. Do not use a base soiled to the mixture. The standard ratio for the making of a mass of 350 ml of water for 0,5 kg of gypsum.