ACTION HUB
How long before flooring can be installed over it?
Use the milestone for flooring installation, not a generic dry-to-touch time. The table below is built only from numeric times in manufacturer documents already recorded in our catalog.
Important: Shortest does not mean interchangeable. Product type, surface, conditions and intended use still have to match your project.
Manufacturer-stated times
| Product | Manufacturer-stated minimum | Condition/source |
|---|---|---|
| MAPEI Planiprep SC Cement-based smoothing compound | 30 minutes | Depends on thickness and environmental conditions. |
| Sika Level-325 Self-Leveling Underlayment Powder (all sizes) | 4 hours | Above 3/8 inch, the data sheet calls for a mat test (ASTM D-4263). |
| Custom Building Products SpeedSlope Rapid Setting Sloping Mortar Powder (all sizes) | 6 hours | Some flooring finishes may need longer to reach lower moisture levels. |
| ARDEX K 15 Premium Self-Leveling Underlayment Powder (all sizes) | 16 hours | At 70°F (21°C). |
| Custom Building Products LevelQuik RS Rapid Setting Self-Leveling Underlayment Powder (all sizes) | 16 hours | The data sheet gives no conditions for this time. |
| LATICRETE NXT Level Self-Leveling Underlayment Powder (Spanish-language data sheet) | 16 hours | Good drying conditions: air at 65 to 75°F (18 to 24°C) and 40 to 60% relative humidity. |
| Henry 544 Floor Leveler Powder (all sizes) | 1 days | At 70°F (21°C). |
| LATICRETE NXT Level Flow Self-Leveling Underlayment Powder (Spanish-language data sheet) | 1 days | Good drying conditions: air at 65 to 75°F (18 to 24°C) and 40 to 60% relative humidity. |
How to use this table
Open the exact product page to see the variant, source wording, stated conditions and other milestones. A minimum time is the earliest stated threshold under the manufacturer’s conditions—not a guarantee for colder, wetter, thicker or poorly ventilated applications.
Related checks
- Confirm the exact formula and region on your container.
- Use the clock for your next action rather than touch-dry time.
- Check temperature, humidity, thickness and substrate notes.
- When the manufacturer provides no correction factor, wait longer and verify physical readiness.