Screeds can be classified according to the type of binders on the basis of which they are made.
Cement-sand screeds (CSS). Absorbent. Water resistant. They shrink and require shrink joints. They are gray in color. They are used inside and outside buildings.
Calcium sulfate screeds (SCS) gypsum or anhydrite.
Absorbent. Non-shrinkable. Seamless. They do not withstand prolonged contact with water. They are white or close to white. For use only in dry rooms.
Magnesium screeds (MS). Absorbent. Highly durable. Wear-resistant. Non-shrinkable. Seamless. Anti static. As a rule, they have very low water resistance. They are white or cream in color and can be tinted. Used for industrial flooring only in dry rooms.
Asphalt screeds (AS). Bitumen is used as a binder. Non-absorbent. Waterproof. Seamless. Ready for use immediately after curing. Can be used both inside and outside buildings.