British Gypsum Thistle Board Finish is a gypsum finish plaster for use on low to medium suction backgrounds. It provides a smooth, inert, high quality surface recommended for use on plasterboard, smooth concrete and waterproofed cement-based undercoats. Thistle Board Finish is extremely easy to handle, dries quickly and only requires the addition of clean water to prepare it for use. To find out more about this product, or any of the other products in our extensive range, speak to a member of our sales team today today. and they will be able to assist you further. PLEASE NOTE :- Return Policy on plaster products : Due to the volatily of plaster products, once delivered or collected we regret that we are UNABLE to accept materials back for credit. .