FEBMIX DH is a mortar plasticiser in powder form for uses an alternative to lime or as a supplement to lime to aid mortar durability. Complies with EN934/3. FEBMIX DH will entrain microscopic air bubbles into cement mortars in a controlled manner as specified in EN934. Air entrained mixes produce greatly enhanced working properties with a reduced demand for mixing water. FEBMIX DH also improves frost resistance in both freshly laid and hardened mortars, as the microscopic air bubbles entrained provide space for expansion of water due to freezing. FEBMIX DH has been tested to EN934-3.