Sikafloor-305 W
Water-based epoxy coating · INTL · manufacturer-sourced
How long before Sikafloor-305 W can get wet?
Short answer
Return-to-use gates
Walk, furniture and full traffic open at different times
- Apply the Water-based epoxy coating to a clean, dry subfloor
- Stay off until the foot-traffic time
- Bring in furniture and heavy use later
This product’s stated stages Quoted at 68°F
- Working time ends1 hour
- Ready for another coat16 hours
- Water-ready1 day
Worth noticing: Working time is only 1 hour; the next stated stage, ready for another coat, is 16 hours.
Common mistake: Moving furniture back the day after, while the surface is still soft.
Return-to-use gates
Open the surface gradually instead of treating cure as one moment
Time returning to use
Your countdown
Stated times
- Working time ends1 hour
- Ready for another coat16 hours
- Water-ready1 day
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: 68°F (20°C)
- Floor times assume the stated temperature and humidity. Cold slabs, thick coats and damp subfloors lengthen them. Follow the current data sheet.
- Region INTL. Formulas can differ between countries; check your container.
- Working time ends: At 20°C and 50% humidity; it is 80 at 10°C and 30 at 25°C.
- Ready for another coat: At 20°C; the sheet labels the figure curing time and the maximum is 4 days.
- Water-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 Report outdated information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 Sikafloor-305 W
- Variant
- Water-based epoxy coating
- Region
- INTL
- Listed use
- concrete floors, coating
- Timed stages recorded
- tooling, recoat min, water ready
- Source checked
- 2026-10-25
Documentation: Technical data sheet · Product data sheet v05.01, Aug 2024
Condition attached to the stated time: At 20°C and 50% humidity; it is 80 at 10°C and 30 at 25°C.
About this product
A water-based epoxy with a 60 minute pot life and a 16 hour minimum curing time. The sheet gives no foot traffic or full cure figure.
Using this specific product
Sika Sikafloor-305 W is listed here as the Water-based epoxy coating version for concrete floors and coating. For installing or finishing a floor, 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 Water-based epoxy coating; related versions can use different timing.
- For concrete floors and coating, pay particular attention to subfloor condition, trowel coverage, room temperature and traffic plan.
- At 20°C and 50% humidity; it is 80 at 10°C and 30 at 25°C. At 20°C; the sheet labels the figure curing time and the maximum is 4 days. The source gives no conditions for this time.
How to check readiness
Test the least-ventilated area before walking, covering or replacing furniture. The sheet gives a pot life of 60 minutes. Before recoating, confirm the first coat matches the manufacturer’s stated condition; if the maximum window passed, check whether sanding is required. Test the seam or finish at the least-ventilated spot before normal water exposure.
Avoid this mistake
Foot traffic, furniture and rugs can have different return times.
Compare with similar products
- Compare with ARDEX LQ 92 Under Tile Levelling CompoundRecoat: 4 h there, 16 h here.
- Compare with Dulux Water-based Polyurethane Floor Enamel 247010Recoat: 4–6 h there, 16 h here.
Questions
How long before this product can get wet?
Sika states: The sheet gives a pot life of 60 minutes. Conditions: At 20°C and 50% humidity; it is 80 at 10°C and 30 at 25°C.. The sheet gives a minimum of 16 hours. Conditions: At 20°C; the sheet labels the figure curing time and the maximum is 4 days.. The sheet says to protect the coating from damp, condensation and water for at least 24 hours. Conditions: The source gives no conditions for this time.. These are the manufacturer’s stated times, not a guarantee.
Does the Sikafloor-305 W sheet give foot traffic time?
No. It gives pot life and a curing window only.
How long do I have to work with this product?
Sika states: The sheet gives a pot life of 60 minutes. Conditions: At 20°C and 50% humidity; it is 80 at 10°C and 30 at 25°C.. These are the manufacturer’s stated times, not a guarantee.
How long before I can apply a second coat of this product?
Sika states: The sheet gives a minimum of 16 hours. Conditions: At 20°C; the sheet labels the figure curing time and the maximum is 4 days.. These are the manufacturer’s stated times, not a guarantee.
What affects how long this product takes to dry or cure?
Floor times assume the stated temperature and humidity. Cold slabs, thick coats and damp subfloors lengthen them. Follow the current data sheet. Follow the product label for your conditions.