Power RX 4 Ultra Flexible large format mortar

The highly stable, flexible thin bed mortar codex Power RX 4 Ultra is particularly suitable for laying heavy large format tiles without sinking in.


  • For large-format tiles
  • For earthenware, stoneware
  • For fine stoneware (only for interior use)
  • For largely cavity-free installation
  • For wall and floor, on underfloor heating
  • For interior and exterior use
  • On calcium sulphate and cementitious screeds, concrete
  • On heated substrates
  • On gypsum, lime cement and cement plaster
  • On gypsum carton and gypsum board plates, tile backing elements


  • Variably adjustable consistency
  • Smooth consistency – very easy to apply
  • Extended working time
  • Suitable up to a mortar bed thickness of 15 mm
  • Suitable for levelling small areas
  • High bonding adhesion
  • Meets C2 E S1 requirements as per EN 12004
  • Pull-off strength ≥ 1.0 N/mm²
  • S1: Bending travel ≥ 2.5 mm
  • Low chromate content acc. Regulation (EC) No. 1907/2006 (REACH)
  • Highest quality level 4 according to DGNB criterion ENV 1.2 Risks for the local environment
  • EMICODE EC1 PLUS/very low-emission
  • Healthy construction

Excellent processing properties due to variably adjustable consistency with optimal transfer especially with large format tiles and slabs.

Technical data

*At 23 °C and 50% rel. humidity.
Pack type

paper bag

Pack size

25 kg

Shelf life

12 months



Minimum working temperature

+ 5 °C to + 25 °C

Ideal working temperatures

+ 10 °C to + 25 °C

Water quantity required

0.23 - 0.27 litres/kg
5.75 - 6.75 litres/25 kg

Working Time/ Pot Life

after 3 hours

Working time

after 30 minutes

Set to foot traffic

after approx. 6 hours

Ready for jointing

after approx. 6 hours


after approx. 2 days

Final strength

after approx. 28 days*


2.7 - 3.9 kg/m²

Ordering information

Article Packsize Shipping unit
codex Power RX 4 Ultra / 25 kg 165355 25 kg
Pallet :
42 bags

Quality seals and badges


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