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ARDEX E 100 Additive to Improve Screeding, Rendering and Repair Mortars, and for Bonding/Slurry Grouts

Verified by manufacturer 3 months ago

Ardex UK Ltd – High Performance Flooring, Tiling, Screeding and Building Products

Additive for bonding and slurry grouts that improves the properties of screeding and rendering mortars and can be mixed with ARDEX A 38 to produce a grouting slurry for bonded screeds.

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Used in bonding grouts or slurry coats, for the adhesion of bonded screeds in mortars based on ordinary Portland cements, masonry cements, cement/ lime and bonded renders, to cementitious backgrounds. Can also be used as an additive to:

  • Improve workability without increasing the water content of mortars.
  • Increase the compressive and tensile bending strengths of the hardened mortars.
  • Improve the elasticity and reduce crack formation in mortars.
  • Reduce surface dusting of screeds and renders while increasing their abrasion resistance.
  • Enable the minimum thickness of the modified bonded Portland cement floor screed to be reduced to 15 mm from the recommended 25 mm minimum thickness for unmodified screed mortars.
  • For internal and external use.


An acrylic-based dispersion for use in screeding and rendering mortars in internal and external locations. It improves the compressive and tensile strengths, and elasticity and bond strength, of the modified mortar. The workability and plastic properties of the mortar are improved without increasing the water/ cement ratio, and early age crack formation is significantly reduced. It is also designed for use in the bonding slurry/ grout mortar mixture for ARDEX A 38 Rapid Hardening and Drying Cement for floor screeds.

Features and benefits:

  • Improves the elasticity and the compressive and tensile strengths of the modified mortar.
  • Improves the workability and plastic properties of the mortar without increasing the water content.
  • Allows bonded cement and sand screeds to be applied at as little as 15 mm thickness.
  • Reduces early age crack formation and surface dusting of screeds, whilst increasing their abrasion resistance.
  • Use with ARDEX A 38 Screeding Cement as a bonding slurry/ grout.

General information




Pr_20_31_03_64 Polymer admixturesPrimary


M10/110 Bonded cement:sand levelling screeds

M10/115 Cement:sand levelling screeds

M10/130 Proprietary quick drying levelling screeds

M10/4 Cement:sand levelling screeds

Specification data - Polymer admixtures

General requirements

Admixtures generally.


2.5 N/mm² after 28 days.

Cement slurries improved with ARDEX E 100 applied onto a clean, laitance free concrete surface will have a tensile adhesion strength in excess of 2.5 N/mm² after 28 days.

Sustainability data

Country of product manufacture

United Kingdom


ARDEX Fast Track Floor Screed Brochure

ARDEX Fast Track Floor Screed Brochure

ARDEX Datasheets Booklet

ARDEX Datasheets Booklet

ARDEX RIBA CPD Seminars Brochure

ARDEX RIBA CPD Seminars Brochure