Mapei Ultraplan 1 Plus High-Performance Quick-Setting Self-Leveling Underlayment kerdi-drain Surfaces must be structurally sound

Surfaces must be structurally sound

seam placement matters more than most installers admit

Soft taupe-grey with a smooth face — the quiet neutral that works with every décor style without committing to any of them

Same KERDI-DRAIN-A adaptor flange that converts standard clamping ring drains for use with Schluter's full waterproofing system — just more of them

Mapei Ultraplan 1 Plus High-Performance Quick-Setting Self-Leveling Underlayment kerdi-drain Surfaces must be structurally soundSetting tile? Ultraplan 1 Plus High Performance Quick Setting Self Leveling Underlayment is the thinset that goes between your tile and the substrate. Polymer modified for proper bond strength on porcelain, ceramic, and natural stone. Use under tile from 2 to 3 thickness.