National Crack Filler is a single component water dilutable, elastomeric and flexible acrylic emulsion based filler for cracks and joints on concrete, plaster etc. for interior/exterior surfaces. It can absorb possible shocks of the contraction and expansion of the substrate surfaces. It has excellent adhesion and elongation property. It is a ready for use type, non-flowing thick paste. It contains anti fungal and anti bacterial additives. RECOMMENDED USES National Crack Filler is suitable for filling the surface cracks on cementitious surfaces, wall, concrete etc. for an instant application purpose. It can be used for leveling surface cracks completely, up to 0.3 – 0.4 mm voids per coat. If the cracks voids are more, use additional coats to level the surface uniformly. Make sure the cracks are only on surface level and not in depth.