British Gypsum Thistle Bonding Coat – the purple bag every plasterer in Birmingham reaches for when the background needs building out or levelling.
- Gypsum undercoat plaster for low to medium suction backgrounds
- Ideal for concrete, engineering bricks, blockwork and smooth surfaces
- Builds up to 11 mm in one pass (50 mm with mesh on very poor backgrounds)
- Easy to mix, rule and float – sets in 1½–2 hours
- Gives a tough, smooth base ready for Thistle Multi or Board Finish
- Conforms to EN 13279-1
25 kg paper bag – kept in stock at Unit 1, Colebrook Road, Birmingham B11 2NT for same-day collection. Pallet deals available.


