To be used as a basic sand plaster and sand layer for internal surfaces. It is not suitable for wet/moist surfaces. One sack Renofix 100 is mixed with 10 to 11 litres of pure clean water. The Skure-Tech S4 is used for machine plastering and levelling using an aluminium leveller. Minimum thickness is 10 mm for the walls and 7 mm for the ceilings. The minimum functional temperature is +5°C.