A water based acrylic emulsion for consolidating plaster work and binding ceramic powders prior to firing. It can also be used n conjunction with a suitable harder polymer for use as a clear sealant over concrete surfaces. pH 9.4 to 9.9. Solids content 46-47%. Freeze thaw stable with a minimum film form temperature of 95 C. B60A may be syringed between layers of plaster to provide a strong consolidating layer.