M623 · Self-levelling compounds
M623 Thick-layer Levelling Mortar
Fine mineral hydraulic mortar for 10–50 mm levelling, renovation of existing floors and backfilling of underfloor heating.
Key features
- 10–50 mm build, freely adjustable
- Low shrinkage, resistant to cracking
- Economic and mineral-based
- Suitable for underfloor heating backfill
Technical data
| Thickness | 10–50 mm |
|---|---|
| Water | 4.5 ± 0.25 L per 25 kg |
| Temperature | 5–35 °C (optimum 15–25 °C) |
| Packaging | 25 kg paper sack |
Product data as published by the manufacturer — confirm current values before specification.
Application & installation
Typical use
Deeper sections that a standard self-levelling compound cannot take in one pass: levelling layers, refurbishment of old floors and backfill over heating pipes.
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M623 Thick-layer Levelling Mortar
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