Custom Building Products

ProLite Premium Large Format Tile Mortar

Gray / white (TDS-114) · US · not yet reviewed

Check your container: This countdown is for the Gray / white (TDS-114) variant. Similar-looking versions may have different times.

How long before you can grout over Custom Building Products ProLite Premium Large Format Tile Mortar?

Short answer

Ready for grout: 1 day after application.
Light foot traffic: 1 day after application.
Grout & tile mortar

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

Calculate return-to-use time

When was the material placed?
Conditions that affect drying
Where?
Thickness

Stated times

  • Working time ends4 hours
  • Ready for grout1 day
  • Light foot traffic1 day
  • Heavy traffic7–10 days
  • Immersion-ready14 days

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

Manufacturer website: custombuildingproducts.com

Conditions & fine print
  • Stated conditions: Not stated in the data sheet
  • Let the mixture slake 5 to 10 minutes and stir again; do not add more water. Primer on lightweight or gypsum surfaces normally dries in under 1 hour, depending on site conditions.
  • Region US. Formulas can differ between countries; check your container.
  • Working time ends: The technical chart gives no test method or conditions. Open time is 30 minutes (ANSI A118.15).
  • Ready for grout: A guideline; curing time is affected by ambient and surface temperatures and humidity.
  • Light foot traffic: A guideline; curing time is affected by ambient and surface temperatures and humidity.
  • Heavy traffic: Only if the assembly is rated Heavy or Extra Heavy per TCNA Service Requirements.
  • Immersion-ready: Water at 70°F (21°C).
  • Entered from the manufacturer source; second review pending. Report outdated information
  • Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

Using this specific product

Custom Building Products ProLite Premium Large Format Tile Mortar is listed here as the Gray / white (TDS-114) version for tile, large format tile, and thin-set. For grouting tile, 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 Gray / white (TDS-114); related versions can use different timing.
  • For tile, large format tile, and thin-set, pay particular attention to joint depth, water ratio, cleanup and room conditions.
  • The technical chart gives no test method or conditions. Open time is 30 minutes (ANSI A118.15). A guideline; curing time is affected by ambient and surface temperatures and humidity. Only if the assembly is rated Heavy or Extra Heavy per TCNA Service Requirements. Water at 70°F (21°C).

How to check readiness

Inspect shaded joints and verify the stated water or traffic milestone. Pot life is 4 hours. Allow 24 hours before grouting and light traffic. Try a protected edge first and avoid turning, dragging or concentrated loads.

Avoid this mistake

Color change alone does not prove the joint is ready for immersion.

Questions

How long before you can grout over this product?

Custom Building Products states: Pot life is 4 hours. Conditions: The technical chart gives no test method or conditions. Open time is 30 minutes (ANSI A118.15).. Allow 24 hours before grouting and light traffic. Conditions: A guideline; curing time is affected by ambient and surface temperatures and humidity.. Allow 24 hours before grouting and light traffic. Conditions: A guideline; curing time is affected by ambient and surface temperatures and humidity.. Allow 7 to 10 days before heavy or vehicular traffic. Conditions: Only if the assembly is rated Heavy or Extra Heavy per TCNA Service Requirements.. Wait 14 days after the final grouting period before filling with water. Conditions: Water at 70°F (21°C).. These are the manufacturer’s stated times, not a guarantee.

How long do I have to work with this product?

Custom Building Products states: Pot life is 4 hours. Conditions: The technical chart gives no test method or conditions. Open time is 30 minutes (ANSI A118.15).. These are the manufacturer’s stated times, not a guarantee.

How long before I can walk on tile set with this product?

Custom Building Products states: Allow 24 hours before grouting and light traffic. Conditions: A guideline; curing time is affected by ambient and surface temperatures and humidity.. These are the manufacturer’s stated times, not a guarantee.

How long before heavy traffic is safe on this product?

Custom Building Products states: Allow 7 to 10 days before heavy or vehicular traffic. Conditions: Only if the assembly is rated Heavy or Extra Heavy per TCNA Service Requirements.. These are the manufacturer’s stated times, not a guarantee.

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

Let the mixture slake 5 to 10 minutes and stir again; do not add more water. Primer on lightweight or gypsum surfaces normally dries in under 1 hour, depending on site conditions. Follow the product label for your conditions.

Similar products

All grout and tile mortar