Sikafloor®-2540 W NA
WATER BASED EPOXY COATING FOR HIGH PERFORMANCE FLOOR AND WALL FINISHES
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Sikafloor 2540W NA is a water based, low VOC, two-part epoxy resin coating with a gloss finish.
- Water based, low VOC’s
- Breathable
- Excellent penetration and adhesion
- Easy application
- Reduced recoat times
Usage
Sikafloor®-2540 W NA is a low VOC pigmented coating available in gloss or satin finishes. Can also be used as a pigmented primer under Sikafloor coating systems and is suitable for high-moisture concrete when used as a two-coat system. In addition, Sikafloor®-2540 W NA can be used as part of an economical, fast setting wall coating system.Advantages
- Water based, low VOC’s
- Breathable
- Excellent penetration and adhesion
- Easy application
- Reduced recoat times
Packaging
| Component A: | 2.0 US gal.(7.57 L) fill in 2 gal. pail |
| Component B: | 3.0 US gal.(11.36 L) fill in 5 gal. pail |
| Components A+B: | 5.0 US gal. kit (18.93 L) |
Color
Color available in nine standard and many custom colors. Not suitable for clear applications.
Product Details
Shelf Life
12 months in original unopened container under proper storage conditions.
Storage Conditions
Store dry between 40°- 90°F (4°- 32°C) DO NOT ALLOW TO FREEZE
Solid content by volume
~ 61.5% +/- 5 % (by volume)
Volatile organic compound (VOC) content
| 6 g/L | Components A+B |
Viscosity
| 1000-300 cps | ASTM D2196 at 73°F (23°C) and 50 % R.H |
Shore D Hardness
| 90 | ASTM D2240 at 73°F (23°C) and 50 % R.H |
Abrasion Resistance
| 0.118g (CS -17) 1000 Rotations /1000g. | ASTM D4060 at 73°F (23°C) and 50 % R.H |
Impact Strength
| 0.45 ft-Ibs | ASTM D2794 at 73°F (23°C) and 50 % R.H |
Service Temperature
50°F (10°C) min./86°F (30°C) max.
Water Absorption
| 6.85% | ASTM C413 at 73°F (23°C) and 50 % R.H |
Permeability to Water Vapor
| 3.96 Prem | ASTM E96 at 73°F (23°C) and 50 % R.H |
Coefficient of Friction
| 0.30 | ANSI 137.1 at 73°F (23°C) and 50 % R.H |
Application
Mixing Ratio
1 : 1.5 by volume
Substrate Temperature
50°F (10°C) min./86°F (30°C) max.
Pot Life
| Material Temperature | Time |
| +73°F (23°C) | ~ 30min |
Cure Time
| Substrate Temperature | Foot Traffic | Light Traffic | Full cure |
| 50 °F (10 °C) | ~ 36 hours | ~ 3 days | ~ 5 days |
| 73 °F (23 °C) | ~ 18 hours | ~ 36 hours | ~ 3 days |
| 86 °F (30 °C) | ~ 14 hours | ~ 30 hours | ~ 2 days |
Waiting / Recoat Times
Before applying second coat Sikafloor®-2540 W NA on Sikafloor®-2540 W NA allow:
| Substrate Temperature | Time Minimum | Time Maximum |
| +50ºF (10ºC | 4 hours | 72 hours |
| +68°F (20°C) | 2 hours | 48 hours |
| +86ºF (30ºC) | 1 hours | 24 hours |
Before applying Sikafloor Epoxy or Polyurethane on Sikafloor Sikafloor®-2540 W NA allow:
| Substrate Temperature | Time Minimum | Time Maximum |
| +50ºF (10ºC | 24 hours | 72 hours |
| +68°F (20°C) | 8 hours | 48 hours |
| +86ºF (30ºC) | 6 hours | 24 hours |
Coverage
160 - 320 ft2 / US gal (3.9 – 4.9 m2 / L) at 5 - 10 mils (0.13 – 0.25 mm) wet film thickness.
MIXING
Mixing Ratio - 1 : 1.5 by volume.
Premix each component separately. Empty Component A (Resin) in the correct mix ratio into component B (Hardener). Mix the combined components for at least 3 minutes using a low speed drill (300 - 450 rpm) and Exomixer or Jiffy type paddle suited to the volume of the mixing container to minimize entrapped air. Be careful not to introduce any air bubbles while mixing. Make sure the contents are completely mixed to avoid any weak or partially cured spots in the coating. During the mixing operation, scrape down the sides and bottom of the container with a flat or straight edge trowel at least once to ensure complete mixing.
Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature.
APPLICATION
Pigmented Primer/Sealer/Finish Coat:
Apply coating by squeegee on horizontal surface and dip roll for vertical surfaces at the rate of 160 - 320 ft2 / US gal (3.9 – 7.8 m2 / L) at 5 – 10 mils (0.13 – 0.25 mm) wet film thickness (w.f.t.) and back-roll with pressure. Coverage will vary depending on the porosity of the prepared floor. Product has a limited pot life, see Typical Data. Ensure that the coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate. If necessary, apply an additional coat to ensure the coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate.