Mapei PlaniLevel™ UL is an ultra-lightweight, polymer-modified, calcium-aluminate-based, self-drying self-leveling underlayment. Its lightweight matrix makes it the choice for projects with tight dead-load limits where a standard self-leveler can't be used.
It reduces dead load by about 50% compared with conventional self-leveling underlayments and can be placed from 1/4" up to 2" in a single pour. One 25 lb bag covers the same area as 50 lb of a standard self-leveler. Light foot traffic is possible after 2 to 3 hours.