Gloucestershire Wet Plastering.
Thistle Hardwall is a gypsum undercoat plaster for use on most masonry. With a final coat of Thistle Multi-Finish, it provides a smooth, inert, high quality surface to internal walls. The combination has superior impact resistance, earlier surface drying, a higher than normal resistance to efflorescence, and gives a durable base for the application of decorative finishes. Thistle Hardwall is a lightweight, retarded hemihydrate, pre-mixed gypsum plaster, incorporating special aggregates and additives, requiring only the addition of clean water to prepare it for use. It is suitable for application by hand or by plaster projection machine.