MC-Nafufil BB2 Acrylic Based Bonding Agent

Acrylic Based Bonding Agent & Polymer Component for Repair Mortars, Cement Screeds, Waterproofing and Polymer Cement Concrete. Nafufill® BB2 is a Saponification-resistant acrylic co-polymer dispersion with extraordinarily favorable characteristics when used as a polymer component in hydraulically setting mortars. By addition of Nafufill® BB2, mortar will be improved particularly in terms of the following characteristics Strength of adhesive to the basis is distinctly improved. This allows structural bonds between existing mortar/concretes and fresh mortar. Coefficient of expansion corresponds to that of the unmodified mortar/concrete. The modulus of elasticity is reduced, the hardened mortar is improved in terms of flexibility, thus avoiding stresses in repairs/screed system. The compressive and flexural strength is increased compared to the reference mix. Water absorption is reduced, thus providing increased waterproofing properties. The fresh mortar is considerably plasticized. Mortars with a particularly low water cement ratio can be produced with the same workability as the reference mix, thus considerably reducing the degree of shrinkage. The water retention value of the mortar is improved, thus involving less risk of drying out, shrinkage cracks, etc. (especially in thin mortar layers.)