NBS Source
Norcros Pro 10 Levelling Compound


Suitable for internal flooring and sub-floors.


A single-part, polymer-modified, self-smoothing levelling compound suitable for use from 0–10 mm thickness in one application.

Features and benefits:

  • The levelling and flow properties of the product make it ideal for preparing sub-floors prior to fixing ceramic, porcelain and natural stone tiles. It is ideal for encapsulating under-tile heating mats and cables, protecting the heating elements during the tile fixing process, as well as providing a level surface.
  • Bed thickness: 0–10 mm.
  • Self-smoothing and good abrasion resistance.
  • Can be tiled on after three hours.
  • Suitable for under-tile heating.
  • Typical strength: CT C30-F9.
  • Suitable substrates include concrete, cement:sand screed, anhydrite/ hemihydrate screeds, existing vinyl/ flooring grade asphalt, existing glazed tiles and heated floors.
  • Norcros Prime Bond is recommended on certain substrates, including power-floated concrete; see technical literature for details. Norcros Key Bond may be used as an alternative on existing glazed tiles and power-floated concrete.
  • Norcros Wet Seal Tanking Membrane is recommended for use in wet areas (or intermittent wetting such as showers and moisture-sensitive backgrounds).
  • Norcros Permalayer anti-fracture membrane may be used on newly poured (48 hours) concrete/ power-floated concrete and sand:cement screed.
  • Under-tile heating cables and mats should be encapsulated in a bed of Norcros Pro 10+ Compound.
  • Not for external or total immersion applications.

General information



Self-smoothing, good abrasion resistance, suitable for use with underfloor heating.





Polymer-modified cement based.


All Norcros Adhesive products are guaranteed to be free from defects and capable of achieving the performance criteria defined in the published product associated data for a period commensurate with the reasonable functional lifespan of the installation.

Uniclass 2015

Pr_35_31_06_80 Smoothing and levelling underlay compoundsPrimary


M40/10 Natural stone covering to

M40/110 Tiling to

M40/115 Natural stone covering to

M40/120 Mosaic to

M40/460 Smoothing underlayment

M40/5 Tiling to

Specification data - Smoothing and levelling underlay compounds Enhanced data


Polymer-modified cement based.

Setting time

Setting time at 20°C.

Three hours for ceramic/ porcelain tiles.

24 hours for natural stone.

48 hours for soft floor coverings.


4 kg/m².

at 3 mm thickness (approximately).

Digital objects

Platform Compatible Version Certified to




Revit 2016


Download now from NBS National BIM Library


Norcros Product and Fixer Guide

Norcros Product and Fixer Guide

Preparation Product Data Sheets

Preparation Product Data Sheets

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