Hardwall is a premixed plaster which you add water to until the consistency is right. It’s available in dry powder form that you can mix with water and use straight away. Alternatively, you can get it in pre-mixed liquid form. The powder has a shelf life of 12 months and should be carefully stored to avoid contamination and moisture retention. Make sure it’s not mixed with any other product before use; if any doubt exists, contact your local supplier.
Hardwall is very similar to wallpapering when it comes to application; instead of sticking it onto wallpaper, however, you stick it directly on your wall. On a new plaster wall, brush off all dust and dirt and apply a thin coat of hardwall over the entire surface. After this dries you can apply one or more coats of your selected decorative plaster.