Berolan LP-W4N

Berolan LP-W4N is a low dust air entraining agent for use in gypsum, lime or cement based construction materials with excellent flow properties. It causes an improvement of working by adoption of micro air pores. The small-sized spherical pores supersede the fine grain particles and raise the slipping effect in the fresh mortar. The required dosage may vary over a wide range (0.001 to 0.05 %) and should be detected by preliminary tests, because air pore formation is dependent on several factors (mortar composition, binder grade, fresh mortar consistency, temperature, mixing time and others). The air entraining agent should be intermixed homogeneously in the dry mortar or to the dry mortar components before addition of water. Suitability tests should be run, because raising air contents cause decreasing strengths.The regional prevailing technical rules and standards about masonry mortar and plaster should be considered.