bonding is a undercoat plaster for low suction background like concrete. hardwall has high impact resistance and is quicker drying.

Is bonding the same as Hardwall?

Bonding plaster has incredible “stickabilty” and does not rely on an absorbent surface to bond to. ... Tough Coat Plaster: Even tougher than Hardwall as an undercoat plaster, and has a greater coverage based on the nominal depth of 11mm. Again, suitable for most masonry walls.

What do you use Hardwall for?

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.