Sikafloor®-2540 W NA

12 months in original unopened container under proper storage conditions.

Store dry between 40°- 90°F (4°- 32°C) DO NOT ALLOW TO FREEZE

~ 61.5% +/- 5% (by volume)

1 : 1.5 by volume

50 °F (10 °C) min./86 °F (30 °C) max.

Pot life is not visible, product remains liquid after exceeding pot life. Application after pot life limit may result in adhesion failure. Do not apply after pot life limit.

Before applying a second coat of Sikafloor®-2540 W NA on Sikafloor®-2540 W NA allow:

Before applying Sikafloor Epoxy or Polyurethane on Sikafloor®-2540 W NA allow:

160 - 320 ft² / US gal (3.9 – 4.9 m² / L) at 5 - 10 mils (0.13 – 0.25 mm) wet film thickness.

Surface must be clean, sound and dry. Remove dust, laitance, grease, curing compounds, preparation bond inhibiting impregnations, waxes and any other contaminants. All projections, rough spots, etc. should be removed to achieve a level surface prior to the application. Concrete should be cleaned and prepared to achieve a laitance-free and contaminant-free, open textured surface by shot blasting or equivalent mechanical means (CSP-2 to CSP-3 as per ICRI guidelines). Sweep and vacuum any remaining dirt and dust with a wet/dry vacuum. Removing residual dust will help ensure a tenacious bond between the primer and substrate. Whenever “shot-blasting” is utilized, be careful to leave concrete with a uniform texture. “Over-blasting” will result in reduced coverage rates of the primer and/or subsequent topcoats. The “shot-blast” pattern may show through the last coat, known as “tracking”. The compressive strength of the concrete substrate should be at least 3,625 psi (25 MPa) at 28 days and at least 218 psi (1.5 MPa) in tension at the time of application. For other substrates, please contact Sikafloor Technical Services.

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.

Pigmented Primer/Sealer/Finish Coat:
Apply coating by squeegee/backroll on horizontal 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. Apply coating by dip/roll for vertical surfaces at 4-8 wet mils per coat. Coverage will vary depending on the porosity of the prepared floor. Product has a limited pot life. 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.