I'm using hydraulic lime mortar (NHL) to (1:3 NHL:Sand) to install an air brick
However, it is very difficult to work with, its has the consistanct of wet sand and does not stick well.
Is there any thing I can add to make it more easy to use. I want it to stick together better and stick to the brick surface better
However, it is very difficult to work with, its has the consistanct of wet sand and does not stick well.
Is there any thing I can add to make it more easy to use. I want it to stick together better and stick to the brick surface better