Pro-Struct 513 Levelling Mortar is a single component 10 to 30mm cement-based semi-self-levelling mortar specially designed for easy application over existing, properly prepared concrete substrates to provide a new wearing surface that is both durable and decorative. Pro-Struct 513 Levelling Mortar can be placed and left in its natural state for a smooth, concrete finish. In addition, it can be integrally coloured, dyed, stained, epoxy coated or polished for a decorative finish. Pro-Struct 513 Levelling Mortar can be opened to foot traffic in 6 to 8 hours and can be open to rubber tyre traffic after 24 hours.