How to mix lime with hardwall plaster?

[gregaldous]

Hi there, how much hydrated lime should I add to Gyprock Hardwall Pladter for best plaster finish?

  

Cheers 

[JacobZ · Accepted solution]

Hi @gregaldous,

The Hardwall Plaster - Product Data Sheet states that -

"The normal ratio should be 2x20kg bags of Gyprock Hardwall Plaster to a 3x20 Litre bags of lime putty or a 1x20kg bag of Hydrated Lime."

So essentially, you want 2 parts hardwall plaster to 1 part hydrated lime.

This will give you a smooth workable mix that will give a fantastic finish.

Let me know if you have further questions.

Jacob