Johnstone’s Trade Smooth Masonry is a durable coating, suitable for most exterior masonry surfaces and is rain resistant after 20 minutes. The durable film is tough, offering excellent resistance against dirt and grime and protects against atmospheric pollution. 
 
The improved formulation has an improved spread rate of 17 sq/m per litre and can be applied from 2°C & rising, whilst still boasting Anti-Carbonation properties and 15 years weather protection (BBA)