internal render on old granite wall

[fruitcake1987]

Hi I have a wall that needs picking back to brick and re rendering I am just wondering how best to do it, I have read elsewhere to wet then scratch then top straight away is this right? the surface is old granite cottage wall on the inside of an external wall also should I use lime? and can I plaster on lime the same as render any help would be great

 

[Render Systems]

use nhl 5 on granite and just lightly dampen down as granite is very smooth and leave minimum 7 - 10 days before each coat misting regularly and rubbing in and cracks that appear

 

[plastererEd]

Hi there,

What is NHL5, and would you really have to wait that long for 2nd coat to be applied, and is it 2nd coat of render you referr to or a finish.

Im guessing this granite will be extremely Low Suction, and thats why you would wait a while.

Thanks

 

[plastererEd]

Sorry I just read a bit slower , It looks like you are reffering to the NHL5 staying on for 7-10 days before the 2nd coat ?

 

[plastererEd]

I Google it

High strength hydraulic lime mortar with faster setting speed. 100% natural with english hydraulic lime and no artificial additives. Gauged and pre-packed this mortar is ready to mix, just add water.