MAPEI

Mapesil T Plus 100% Silicone Sealant

All colors · US · not yet reviewed

Short answer

Water-ready: 1 day after application.
Full cure: 28 days after application.

Start the clock

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

Stated times

  • Tack-free10–20 minutes
  • Light foot traffic1 day
  • Water-ready1 day
  • Full cure28 days

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

Conditions & fine print
  • Stated conditions: 73°F (23°C) and 50% relative humidity
  • Full cure depends on air and surface temperature and humidity.
  • Temperature range: 40°F to 90°F
  • Region US. Formulas can differ between countries; check your container.
  • Tack-free: 73°F and 50% RH
  • Light foot traffic: 73°F (23°C)
  • Water-ready: 73°F (23°C)
  • 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 Report outdated information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 Mapesil T Plus 100% Silicone Sealant can get wet?

MAPEI states: Protect from light foot traffic and water exposure for at least 24 hours at 73°F. Conditions: 73°F (23°C). This is the manufacturer’s stated time, not a guarantee.

How long before Mapesil T Plus 100% Silicone Sealant is full cure?

MAPEI states: Full cure: 28 days depending on ambient temperature, substrate temperature and humidity. This is the manufacturer’s stated time, not a guarantee.

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