Sika

Sikaflex-2c NS TG Plus

Two-component joint sealant · US · manufacturer-sourced

Check your container: This countdown is for the Two-component joint sealant variant. Similar-looking versions may have different times.

How long before Sikaflex-2c NS TG Plus can be put in water?

Short answer

Immersion-ready: 3 days after application.
Caulk & sealant

Bead cure stages

Skin, tack-free and paint-ready are not the same moment

  1. Gun a continuous bead of Two-component joint sealant
  2. Tool it inside the working time
  3. Keep it dry until the stated water-ready time

This product’s stated stages Quoted at 73°F

  • Working time ends2 hours 30 min
  • Immersion-ready3 days

Worth noticing: Working time is only 2 hours 30 min; the next stated stage, immersion-ready, is 3 days.

Common mistake: Showering or painting at skin-over, when the bead is only crusted on the outside.

Caulk & sealant

Bond-strength path

Assembly, handling and full load are different stages

1 · AssembleClean, fit and apply the Two-component joint sealant version correctly.
2 · HoldKeep the joint undisturbed through its set or clamp stage.
3 · LoadUse full cure—not surface firmness—before demanding use.

Time the caulk cure

When did you run the bead?
Conditions that affect drying
Where?
Thickness

Stated times

  • Working time ends150 minutes
  • Immersion-ready3 days

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

Manufacturer website: usa.sika.com

Conditions & fine print
  • Stated conditions: 73°F (23°C)
  • Sealant skin and tack-free times are for a thin film. Deep joints cure from the outside in and take longer. Follow the current data sheet.
  • Region US. Formulas can differ between countries; check your container.
  • Working time ends: At 73°F with the EZ Mix+ version.
  • Immersion-ready: The source gives no conditions for this time.
  • 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 Report outdated information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
Sika Sikaflex-2c NS TG Plus
Variant
Two-component joint sealant
Region
US
Listed use
traffic joints, expansion joints
Timed stages recorded
tooling, immersion
Source checked
2026-10-25

Documentation: Technical data sheet · Product data sheet v01.05, May 2026

Condition attached to the stated time: At 73°F with the EZ Mix+ version.

About this product

A two-part joint sealant with a 1.5 to 2.5 hour application time and a 3 day wait before immersion.

Using this specific product

Sika Sikaflex-2c NS TG Plus is listed here as the Two-component joint sealant version for traffic joints and expansion joints. For sealing a joint, 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 Two-component joint sealant; related versions can use different timing.
  • For traffic joints and expansion joints, pay particular attention to joint depth, tooling, ventilation and exposure to water.
  • At 73°F with the EZ Mix+ version. The source gives no conditions for this time.

How to check readiness

Probe an inconspicuous edge for a continuous skin and follow the stated water-exposure milestone. The sheet gives an application time of about 1.5 to 2.5 hours. Continuous immersion is more demanding than splashes; wait for the specific immersion milestone.

Avoid this mistake

Surface skin is not the same as through-cure, especially in a deep joint.

Keep going

Questions

How long before this product can be put in water?

Sika states: The sheet gives an application time of about 1.5 to 2.5 hours. Conditions: At 73°F with the EZ Mix+ version.. The sheet gives immersion service after 3 days. Conditions: The source gives no conditions for this time.. These are the manufacturer’s stated times, not a guarantee.

How long before Sikaflex-2c NS TG Plus can be immersed?

The sheet gives 3 days.

How long do I have to work with this product?

Sika states: The sheet gives an application time of about 1.5 to 2.5 hours. Conditions: At 73°F with the EZ Mix+ version.. These are the manufacturer’s stated times, not a guarantee.

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

Sealant skin and tack-free times are for a thin film. Deep joints cure from the outside in and take longer. Follow the current data sheet. Follow the product label for your conditions.

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