Thistle Multi-Finish is a gypsum finish plaster for use on a wide range of backgrounds. British gypsum thistle multi finish plaster provides a smooth, inert, high quality surface to internal walls and ceilings, and a durable base for the application of decorative finishes. Thistle Multi-Finish is a retarded hemihydrate, pre-mixed gypsum plaster, requiring only the addition of clean water to prepare it for use. Application of thistle multifinish This thistle multi finish plaster 25kg product can be used in a number of applications. Thistle Multi-Finish is designed for the finishing of a wide range of backgrounds, from low-suction (e.g. plasterboard,Glasroc F MULTIBOARD and Glasroc F FIRECASE, Thistle Dri-Coat, sufficiently flat concrete and other flat surfaces treated with bonding agents) through to medium-high suction of gypsum or cement-based undercoat plasters.