Fermacell Fine Surface Treatment comes in two different sizes, 3 litre and 10 litre tubs, dependent on how much you require. A 10 litre tub will cover up to approximately 60m and a 3 litre tub will cover up to 12m. It is suitable for cement based substrates both indoors and outdoors, and for wet areas. It is ideally suited for filling over screw heads and glue joints, for smoothing and filling irregularities on walls, ceilings and floors. The treatment comes ready mixed for your needs so you don't have to waste time mixing. Although Fermacell Fibreboards do not require a skim coat, use Fermacell Fine Surface Treatment on your boards to achieve a smooth surface ready for painting. This product is e mission, solvent & plasticizer-free If you require any further information on this product or any in the Fermacell range. Please contact a member of our sales team today. Type Treatment Pack Qty 1 Volume in ltrs 10ltr