Sikalastic-626
Rapid-curing polyurethane traffic membrane · US · manufacturer-sourced
How long before you can recoat Sikalastic-626?
Short answer
Placement-to-service plan
Set, hardening and loading come days apart
- Place and finish the Rapid-curing polyurethane traffic membrane
- Keep it moist or protected as directed
- Load it only at the stated strength time
This product’s stated stages Quoted at 70°F and 50% humidity
- Rain-ready10 minutes
- Safe to touch4 hours
- Ready for another coat5 hours
- Full cure12–18 hours
Worth noticing: Touch-dry comes at 4 hours, but full cure is 12–18 hours, about 3 times longer.
Common mistake: Driving on it because it feels hard; strength keeps building for days.
Return-to-use gates
Open the surface gradually instead of treating cure as one moment
Time the concrete cure
Your countdown
Stated times
- Safe to touch4 hours
- Ready for another coat5 hours
- Rain-safe10 minutes
- Full cure12–18 hours
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: 70°F (21°C) and 50% relative humidity
- Dry and recoat times change with temperature, humidity and film build. Follow the current data sheet and label.
- Temperature range: 41°F to 95°F
- Region US. Formulas can differ between countries; check your container.
- Safe to touch: At 70°F and 50% relative humidity.
- Ready for another coat: It is 14 hours at 40°F and 6 hours at 50°F.
- Rain-safe: At 70°F and 50% relative humidity.
- Full cure: It is 24 hours at 40°F and 18 to 24 hours at 50°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 Report outdated information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-626
- Variant
- Rapid-curing polyurethane traffic membrane
- Region
- US
- Listed use
- parking decks, balconies, concrete decks
- Timed stages recorded
- touch, recoat min, rain ready, full cure
- Source checked
- 2026-10-25
Documentation: Technical data sheet · April 2023, Version 01.06
Condition attached to the stated time: At 70°F and 50% relative humidity.
About this product
A polyurethane deck membrane notable for its rain resistance at only 10 minutes. The sheet then gives a full temperature ladder, 12 hours to cure at 40°F, 18 to 24 at 50°F and 12 to 18 hours at 70°F. After 7 days the surface needs reactivation primer before more coats.
Using this specific product
Sika Sikalastic-626 is listed here as the Rapid-curing polyurethane traffic membrane version for parking decks, balconies, and concrete decks. For repairing concrete or masonry, 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 Rapid-curing polyurethane traffic membrane; related versions can use different timing.
- For parking decks, balconies, and concrete decks, pay particular attention to substrate moisture, depth, temperature and protection from traffic.
- At 70°F and 50% relative humidity. It is 14 hours at 40°F and 6 hours at 50°F. It is 24 hours at 40°F and 18 to 24 hours at 50°F.
How to check readiness
Check the slowest, coolest section before loading or coating. Touch only a hidden edge first; a dry surface can conceal a soft layer underneath. Before recoating, confirm the first coat matches the manufacturer’s stated condition; if the maximum window passed, check whether sanding is required. Use this only as the rainfast milestone. It does not establish general cure or re-entry safety.
Avoid this mistake
Early strength, coating readiness and full cure are separate decisions.
Compare with similar products
- Compare with BEHR PREMIUM Concrete & Garage Self-Priming 1-Part Epoxy (No. 900)Recoat: 4–6 h there, 5 h here.
- Compare with BEHR PREMIUM Low-Lustre SealerRecoat: 4 h there, 5 h here.
Questions
How long before you can recoat this product?
Sika states: The data sheet lists touch dry at 4 hours at 70°F; it is 6 hours at 50°F and 12 hours at 40°F. Conditions: At 70°F and 50% relative humidity.. The data sheet gives a minimum wait of 5 hours before overcoating at 70°F. Conditions: It is 14 hours at 40°F and 6 hours at 50°F.. The data sheet says it is rain resistant within 10 minutes after application. Conditions: At 70°F and 50% relative humidity.. The data sheet gives 12 to 18 hours to cure at 70°F. Conditions: It is 24 hours at 40°F and 18 to 24 hours at 50°F.. These are the manufacturer’s stated times, not a guarantee.
What if I wait more than 7 days to recoat Sikalastic-626?
The sheet says that after 7 days the surface must be cleaned and primed with Sika Reactivation Primer before continuing.
How long does this product take to fully cure?
Sika states: The data sheet gives 12 to 18 hours to cure at 70°F. Conditions: It is 24 hours at 40°F and 18 to 24 hours at 50°F.. These are the manufacturer’s stated times, not a guarantee.
How long before this product can get rained on?
Sika states: The data sheet says it is rain resistant within 10 minutes after application. Conditions: At 70°F and 50% relative humidity.. These are the manufacturer’s stated times, not a guarantee.
How long until this product is safe to touch?
Sika states: The data sheet lists touch dry at 4 hours at 70°F; it is 6 hours at 50°F and 12 hours at 40°F. Conditions: At 70°F and 50% relative humidity.. These are the manufacturer’s stated times, not a guarantee.
What affects how long this product takes to dry or cure?
Dry and recoat times change with temperature, humidity and film build. Follow the current data sheet and label. Follow the product label for your conditions.