Sika

Sikalastic-918 FS

Fast-setting deck membrane · US · manufacturer-sourced

Check your container: This countdown is for the Fast-setting deck membrane variant. Similar-looking versions may have different times.

How long does Sikalastic-918 FS take to cure?

Short answer

Full cure: 1 hour after application.
Roof coatings and roofing sealants

Weather-window plan

Rain-ready comes long before fully cured

  1. Apply the Fast-setting deck membrane to a dry, clean roof surface
  2. Keep rain off for the stated period
  3. Allow foot traffic only at the stated time

This product’s stated stages Quoted at 73°F

  • Full cure1 hour

Worth noticing: The manufacturer states only one timing here (full cure, 1 hour); nothing else is inferred.

Common mistake: Starting a coat when the afternoon forecast turns wet.

Roof coatings and roofing sealants

Coat timeline

Plan the next coat and final use separately

  1. 1
    ApplyUse the Fast-setting deck membrane directions and prepare for parking decks and bridge decks.
  2. 2
    Next coatUse the listed recoat milestone; do not substitute touch-dry time.
  3. 3
    Normal useWait for the applicable handling, water or cure milestone.

Plan around the weather

When did you apply the coating?
Conditions that affect drying
Where?
Thickness

Stated times

  • Full cure1 hour

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)
  • Times depend on temperature, humidity, film or bead thickness and airflow. Follow the current data sheet and label.
  • Apply at 30°F or above
  • Region US. Formulas can differ between countries; check your container.
  • Full cure: The minimum application temperature is 30°F.
  • 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 Report outdated information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 Sikalastic-918 FS
Variant
Fast-setting deck membrane
Region
US
Listed use
parking decks, bridge decks
Timed stages recorded
full cure
Source checked
2026-10-25

Documentation: Technical data sheet · Product data sheet v02.02, Jan 2025

Condition attached to the stated time: The minimum application temperature is 30°F.

About this product

A fast-setting deck membrane that cures within 1 hour and goes on down to 30°F, which makes it a cold-season repair option.

Using this specific product

Sika Sikalastic-918 FS is listed here as the Fast-setting deck membrane version for parking decks and bridge decks. For coating or sealing a roof, 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 Fast-setting deck membrane; related versions can use different timing.
  • For parking decks and bridge decks, pay particular attention to roof temperature, dew, rain in the forecast, film thickness and how many coats are needed.
  • The minimum application temperature is 30°F.

How to check readiness

Check that the surface is dry and that no rain or dew is forecast inside the stated window. Reserve full cure for demanding use, chemicals, washing, immersion or load—not merely gentle handling.

Avoid this mistake

Rain resistance and walkable are earlier milestones than the full cure the roof system is rated for.

Compare with similar products

Keep going

Questions

How long does this product take to cure?

Sika states: The sheet says the Traffic 2900 system fully cures within 1 hour. Conditions: The minimum application temperature is 30°F.. These are the manufacturer’s stated times, not a guarantee.

How fast does Sikalastic-918 FS cure?

The sheet says the Traffic 2900 system fully cures within 1 hour.

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

Times depend on temperature, humidity, film or bead thickness and airflow. Follow the current data sheet and label. Follow the product label for your conditions.

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