ARDEX A 35 MIX Pre-Blended Rapid Drying Screed

ARDEX A 35 MIX contains one part ARDEX A 35 quick drying cement and four parts, by weight, of screeding sand, requiring only the addition of water. Use for the installation of new screeds or for repairs to existing screeds where rapid setting and drying is required. Can be used to produce bonded, unbonded or floating screeds and will be dry after 24 hours at 20°C to receive floor finishes, regardless of thickness.


When used as a repair mortar ARDEX A 35 MIX can be applied to the full thickness of the existing screed. When applied as a new screed, application at the following thicknesses is recommended:

  • Bonded screeds: Minimum 15 mm, (design thickness up to 40 mm).
  • Unbonded screeds: Minimum 40 mm.
  • Floating screeds: Minimum 75 mm (Minimum 65 mm in lightly loaded (domestic) locations).

General information


Pre-blended with graded sand for convenience - just add water; Ideal for screeding in locations where access is limited; Walkable in 3 hours; Receives ceramic and natural stone tiles directly after 24 hours; Install carpet, wood and vinyl floorcoverings after 24 hours, or just 4 hours for carpet and vinyl when smoothed with ARDEX A55; Passes BRE Screed (ISCR) Testing after 6 hours; After just one day, achieves the acceptable minimum compressive and tensile bending strengths attained by an ordinary cement, screed after 28 days; For bonded, unbonded and floating screeds; Can be used with underfloor heating systems


Sand and cement

Uniclass 2015

Pr_35_31_06_69 Quick-drying levelling screed mixesPrimary


M40/20 Existing backgrounds/ bases generally

M40/320 Existing concrete/ screeds

Specification data - Quick-drying levelling screed mixes

Product Reference

ARDEX A 35 MIX Pre-blended Ultra Rapid Drying Cement for Internal Screeds

Standard product features

Weight of fresh mortar:

  • Approximately 2kg/L.

Working time at 20°C:

  • Approximately 60 minutes.

Walkability 20°C:

  • Approximately 3 hours.

Compressive Strength (DIN 1164):

  • After 1 day: 25.0 N/mm².
  • After 3 days: 32.0 N/mm².
  • After 28 days: 40.0 N/mm².

Tensile Bending Strength (DIN 1164):

  • After 1 day: 5.0 N/mm².
  • After 3 days: 6.0 N/mm².
  • After 28 days: 7.0 N/mm².

Drying Time:

  • After 4 hours: Suitable to receive PVC floorcoverings and carpets when smoothed with ARDEX A55.
  • After 24 hours: Suitable to receive vinyl and ceramic tiles to bonded, unbonded and floating screeds.

Digital objects
Platform Compatible Version Certified to

Revit 2016




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