NIROPLAST AEA is a chloride free air entraining admixture based on neutralised vinson resin. It is supplied as a translucent to colourless solution which instantly disperses in water. NIROPLAST AEA acts at the interface between the mixing water and cement/aggregate particles to produce microscopic air bubbles, which are evenly distributed throughout the concrete. The entrained air enhances durability by providing protection against the rapid temperature changes found in freezing and thawing conditions and with the use of de-icing salts.  NIROPLAST AEA is an air-entraining admixture for concrete and mortar which creates highly stable micro air bubbles that are strong, small and closely spaced.