Custom Building Products

SpeedSet Fortified Thin-Set Mortar

Rapid-setting · US · not yet reviewed

Short answer

Light foot traffic: 4 hours after application.
Heavy traffic: 3 days after application.

Start the clock

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

Stated times

  • Working time ends30 minutes
  • Light foot traffic4 hours
  • Heavy traffic3 days
  • Immersion-ready14 days

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

Conditions & fine print
  • Stated conditions: Not stated
  • Allow 3 hours before grouting. Pot life is about 30 minutes. Curing time depends on temperature and humidity.
  • Region US. Formulas can differ between countries; check your container.
  • Heavy traffic: Assembly must be rated for heavy service
  • 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 Report outdated information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 SpeedSet Fortified Thin-Set Mortar is light foot traffic?

Custom Building Products states: 4 hours before light traffic. This is the manufacturer’s stated time, not a guarantee.

How long before SpeedSet Fortified Thin-Set Mortar is heavy traffic?

Custom Building Products states: 3 days before heavy or vehicular traffic. Conditions: Assembly must be rated for heavy service. This is the manufacturer’s stated time, not a guarantee.

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