Mapei Mapecem Pronto is a preblended, rapid-setting cementitious mortar for constructing floor screeds when conventional sand-and-cement drying schedules would hold up the job. Because the aggregate and binder are already proportioned, installers can mix a consistent screed on site without separately batching the sand.
Mapecem Pronto is suited to correctly designed internal and external screeds, including bonded and unbonded systems where specified. Its controlled-shrinkage formulation is valuable when the flooring programme calls for early covering with compatible ceramic, stone or other finishes, subject to the applicable moisture and curing requirements.
Choose Mapecem Pronto when you want a ready-proportioned screed mortar. Choose Mapecem binder when the installer is sourcing and proportioning the aggregate on site. Both are screed products, not self-levelling compounds for feather-edge smoothing.
On a retail refurbishment or a staged fit-out, waiting for a conventional screed to dry can hold up tiling and the trades that follow. Mapecem Pronto addresses that bottleneck with a factory-proportioned screed mortar: the installer adds the prescribed water, places and compacts the material, and works to an accelerated covering schedule instead of batching sand and binder separately.
MAPEI lists typical light foot traffic at 2–3 hours, ceramic and stone installation after around 3 hours, and resilient or timber flooring after around 24 hours under stated conditions. These are planning benefits, not unconditional promises: temperature, moisture, screed build-up and the chosen finish still govern when the next trade can proceed.
Bonded screeds require the specified fresh bonding slurry and correct base preparation. Screed thickness, mixing water, curing and covering intervals depend on the selected system and conditions; do not apply flooring solely by elapsed time.
How much water is used with Mapecem Pronto?
Approximately 1.5–1.7 litres per 20kg bag.
When can tiles be installed?
After about 3 hours for ceramic tile and natural stone.
When can resilient or timber flooring be installed?
After about 24 hours.
How long is the workability time?
About 20–30 minutes.
| Property | Value |
|---|---|
| Consistency | Powder |
| Bulk Density | 1800 kg/m³ |
| Mixing Ratio | 1.5–1.7 L water per 20 kg |
| Pot Life | 20–30 minutes |
| Application Temperature | +5°C to +35°C |
| Ready for Light Foot Traffic | 2–3 hours |
| Full Cure | 24 hours |
| Residual Moisture | < 2% after 24 hours |
| Compressive Strength | > 40 N/mm² (1 day), > 50 N/mm² (3 days) |
| Flexural Strength | > 6 N/mm² (1 day), > 7 N/mm² (3 days) |
| Coverage Rate | 20 kg/m² per cm thickness |
| Solid Content | 100 |
| Density | approx. 2200 |
| Mixing Time | 3-4 minutes |
| Recoat Time | after 4 hours |
| Chemical Resistance | fair |
| Service Temperature | from -30°C to +90°C |
Here are some common examples on where Mapei Mapecem Pronto Screed used by our customers.
