The thistle bonding coat from British Gypsum is an undercoat plaster ideal for smooth and low suction backgrounds, including medium density blocks, dense blocks, plasterboard, painted or tiled surfaces and more. The plaster comes with a finer mix, giving great workability and making it easier to apply. Undercoat plaster for low suction surfaces Ideal for new walls, or for making good old walls Good workability due to a fine mix Ideal for applying directly to plasterboard where dubbing out is required Provides an excellent base coat for Thistle finishing plasters Pretreatment is required for painted surfaces. British Gypsum Thistle Bonding Coat Plaster 25kg is a versatile undercoat plaster that can be used on a variety of backgrounds. It is an ideal base coat plaster for smooth or low suction backgrounds. Thistle Bonding Coat is the ultimate choice for a seamless plastering experience. This versatile plaster is designed to work across a variety of internal surfaces, including brick, blockwork, plasterboard, and concrete. Whether you're working on new walls or making old walls look new again, this product provides the perfect base for all your plastering projects. The Thistle Bonding Coat Plaster boasts a fine mix that enhances workability, making it incredibly easy to spread, rule, and darby. It's the ideal base coat for smooth or low suction backgrounds such as tiling, concrete, and surfaces treated with Thistle Bond-It. Features & Benefits: Highly versatile undercoat and finish plaster in one product. Suitable for internal surfaces including brick, blockwork, plasterboard, and concrete. Fine mix for improved workability: easy to spread, rule, and darby. Ideal base coat for smooth or low suction backgrounds. Perfect for applying directly to plasterboard where dubbing out is required. Excellent for new walls or refurbishing old walls. Provides an excellent base coat for Thistle finishing plasters. Comes in a 25kg pack.