Sopro Rapidur® M5 – Rapid Drying Floor Screed

Ready-to-use, polymer-modified dry mix for particularly economical production of rapid-set cement screeds to DIN 18 560, allowing early flooring installation.

Achieves grade CT-C35-F5 to DIN EN 13 813 after 7 days, grade CT-C40-F6 after 28 days. No extra sand needs to be added. Low-chromate to Regulation (EC) No 1907/2006, Annex XVII.

For the production of rapid-set cement screeds to DIN 18 560, allowing early flooring installation. For heated, bonded, unbonded and floating screeds. Particularly suitable for fast-track or tightly scheduled screed laying. Also suitable for use as a finished floor surface and for underwater applications. For indoor and outdoor use.

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Benefits of Sopro Rapidur® M5 – Rapid Drying Floor Screed

• Ready for tiling after only approx. 24 hours
• Ready-to-use dry mix
• For fast-track or tightly scheduled screed laying
• Ideal for renovation and refurbishment
• Suitable for floor heating systems
• Suitable for use as a finished floor surface
• Good workability
• Pumpable
• Also suitable for grouting fence posts
• 20 – 100 mm coat thickness
• EMICODE system of GEV (German Association for the Control of Emissions in Products for Flooring Installation, Adhesives and Building Materials): EC1PLUS R (“very-low-emission-plus”) rating
• For indoor and outdoor use

Technical Details for Sopro Rapidur® M5 – Rapid Drying Floor Screed

Mixing Ratio Approx. 1.5 – 1.8 ltr water: 25 kg Sopro Rapidur® M5
Working life 3 – 4 hours; stiffened mortar should not be retempered by addition of water or fresh mortar
to restore workability.
Walkable After approx. 12 hours
Ready to receive
floor covering
After approx. 24 hours for tiling; after approx. 2 days for deformation-resistant natural or cast
stone units
Strength class CT-C35-F5 after 7 days
CT-C40-F6 after 28 days
Coverage 18 – 20 kg/m² per cm coat thickness; 1,800 – 2,000 kg/m³
Shelf life Approx. 12 months, subject to storage on pallet sin dry conditions in original unopened containers
Notes on use with
floor heating system
Suitable for heated screeds with max. +55 °C flow temperature.
Prior to laying tiles or other floor coverings, the screed should be heated up and allowed to cool in
accordance with basic procedures required for traditional cement screeds.
Heating phase should commence at the earliest three days after screed laying. During the first heating cycle, a
+25 °C flow temperature should be maintained for three days. The system should then be set to maximum
flow temperature, to be maintained for a further four days, before being lowered to laying
temperature.
Specified times Apply for normal temperature range of +23 °C and 50% relative humidity; higher temperatures shorten
and lower temperatures lengthen these times

Available in 25kg bags, 40 bags per pallet.