Sika SikaMix Plus Chloride Free Mortar Plasticiser is a ready and easy to use, economical, plasticising liquid admixture for mortars and plaster, with an improved setting time. SikaMix Plus adds hydration, thus increasing workability and improving the quality of mortars, renders and plasters. SikaMix Plus increasing frost resistance, and reduces the cracking and /butterfly effect. SikaMix Plus is CE marked as mortar admixture for masonry.