LATICRETE

SPECTRALOCK PRO Premium Grout

Epoxy (all colors) · US · not yet reviewed

Short answer

Light foot traffic: 1 day after application (shorter only under the manufacturer’s stated conditions — see below).
Heavy traffic: 2 days after application (shorter only under the manufacturer’s stated conditions — see below).

Start the clock

When did you apply it?
Outdoors, temperature
Where?
Thickness

Stated times

  • Working time ends1 hour 20 minutes
  • Light foot traffic1 day*
  • Heavy traffic2 days*
  • Immersion-ready10 days
  • Full cure28 days*

* Shorter only under the manufacturer’s stated conditions.

From LATICRETE data sheet · checked 2026-10-24. Anything not listed isn’t stated by the manufacturer.

Conditions & fine print
  • Stated conditions: Typical times at 70°F (21°C); the data sheet lists 40°F and 95°F too
  • The data sheet gives a temperature table (40°F, 70°F, 95°F). This site uses the row at or below your temperature and never interpolates. Maximum stain protection takes 7 days at 70°F.
  • Region US. Formulas can differ between countries; check your container.
  • Working time ends: At 70°F; much shorter when hot
  • Light foot traffic: Temperature table
  • Heavy traffic: Temperature table
  • Immersion-ready: At 70°F
  • Full cure: Temperature table
  • Entered from the manufacturer source; second review pending. Report outdated information
  • Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

Questions

How long before SPECTRALOCK PRO Premium Grout is light foot traffic?

LATICRETE states: Ready for light foot traffic: 24 hours at 40°F, 12 hours at 70°F, 6 hours at 95°F. Conditions: Temperature table. This is the manufacturer’s stated time, not a guarantee.

How long before SPECTRALOCK PRO Premium Grout is heavy traffic?

LATICRETE states: Ready for heavy foot traffic: 48 hours at 40°F, 24 hours at 70°F, 12 hours at 95°F. Conditions: Temperature table. This is the manufacturer’s stated time, not a guarantee.

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