Stopgap 300 Powder Mixed with Water
A rapid hardening, water mix smoothing underlayment. It is designed for use on both absorbent and non-absorbent interior subfloors, in areas that are subjected to heavy-duty trafficking.
The underlayment has excellent smoothing properties making it suitable for application by mechanical pump or by traditional mixing methods. It is protein-free ensuring it is suitable for biologically sensitive areas. For thickness above 10mm, Stopgap Graded Aggregate is recommended for economy.