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.

Scroll to Top