MAPEI

Mapegum WPS

Liquid waterproofing membrane · INTL · manufacturer-sourced

Check your container: This countdown is for the Liquid waterproofing membrane variant. Similar-looking versions may have different times.

How long before you can tile over MAPEI Mapegum WPS?

Short answer

Ready for tile: 12 hours to 1 day after application.
Ready for another coat: 1 hour after application.
Floors & flooring adhesive

Return-to-use gates

Walk, furniture and full traffic open at different times

  1. Apply the Liquid waterproofing membrane to a clean, dry subfloor
  2. Stay off until the foot-traffic time
  3. Bring in furniture and heavy use later

This product’s stated stages Quoted at 73°F

  • Ready for another coat1 hour
  • Fully dry5 hours
  • Ready for tile12 hours to 1 day

Worth noticing: Ready for another coat at 1 hour; ready for tile at 12 hours to 1 day.

Common mistake: Moving furniture back the day after, while the surface is still soft.

Floors & flooring adhesive

Return-to-use gates

Open the surface gradually instead of treating cure as one moment

Touch / inspectA surface check only
Foot trafficUse the stated walking time
Heavy useWait for furniture, water or vehicle readiness

Time returning to use

When did you install the floor product?
Conditions that affect drying
Where?
Thickness

Stated times

  • Ready for another coat1 hour
  • Ready for tile12 hours to 1 day
  • Fully dry5 hours

From MAPEI data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.

Manufacturer website: mapei.com

Conditions & fine print
  • Stated conditions: 73°F (23°C)
  • Floor coating times assume the stated temperature and humidity. Cold slabs, thick coats and damp concrete lengthen them. Follow the current data sheet.
  • Temperature range: 41°F to 95°F
  • Region INTL. Formulas can differ between countries; check your container.
  • Ready for another coat: At +23°C.
  • Ready for tile: At +23°C.
  • Fully dry: At +23°C.
  • Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
  • Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

Confirm this is your product

Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.

Exact listing
MAPEI Mapegum WPS
Variant
Liquid waterproofing membrane
Region
INTL
Listed use
waterproofing membrane
Timed stages recorded
recoat min, tile ready, full dry
Source checked
2026-10-25

Documentation: Technical data sheet copy · UK edition 2014-06-2022

Condition attached to the stated time: At +23°C.

About this product

A liquid waterproofing membrane on a UK data sheet, so temperatures are in Celsius: apply from +5 to +35°C. The wait to tile is 12 to 24 hours, but over non-absorbent substrates the sheet asks for 4 to 5 days. The membrane is completely dry at 1 mm in 5 hours.

Using this specific product

MAPEI Mapegum WPS is listed here as the Liquid waterproofing membrane version for waterproofing membrane. For installing or finishing a floor, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.

Before you start

  • Confirm the package says Liquid waterproofing membrane; related versions can use different timing.
  • For waterproofing membrane, pay particular attention to subfloor condition, trowel coverage, room temperature and traffic plan.
  • At +23°C.

How to check readiness

Test the least-ventilated area before walking, covering or replacing furniture. Before recoating, confirm the first coat matches the manufacturer’s stated condition; if the maximum window passed, check whether sanding is required. The data sheet gives a wait of 12 to 24 hours before laying coating material, and 4 to 5 days over non-absorbent substrates. The data sheet gives completely dry at 1 mm thickness in 5 hours.

Avoid this mistake

Foot traffic, furniture and rugs can have different return times.

Compare with similar products

Questions

How long before you can tile over this product?

MAPEI states: The data sheet gives about 60 minutes between the first and second coats, when touch dry. Conditions: At +23°C.. The data sheet gives a wait of 12 to 24 hours before laying coating material, and 4 to 5 days over non-absorbent substrates. Conditions: At +23°C.. The data sheet gives completely dry at 1 mm thickness in 5 hours. Conditions: At +23°C.. These are the manufacturer’s stated times, not a guarantee.

Why does Mapegum WPS give two different waits before tiling?

It gives 12 to 24 hours before laying coating material generally, and 4 to 5 days where the substrate is non-absorbent, because the membrane dries more slowly without absorption.

How long before I can apply a second coat of this product?

MAPEI states: The data sheet gives about 60 minutes between the first and second coats, when touch dry. Conditions: At +23°C.. These are the manufacturer’s stated times, not a guarantee.

How long until this product is fully dry?

MAPEI states: The data sheet gives completely dry at 1 mm thickness in 5 hours. Conditions: At +23°C.. These are the manufacturer’s stated times, not a guarantee.

What affects how long this product takes to dry or cure?

Floor coating times assume the stated temperature and humidity. Cold slabs, thick coats and damp concrete lengthen them. Follow the current data sheet. Follow the product label for your conditions.