Sikafloor® P 622

Sikafloor® P 622 is registered in the DGNB (German Sustainable Building Council) Navigator platform and exhibits a DGNB Navigator label. The DGNB Navigator Label provides all the required information about our flooring products (product profiles) to build DGNB certified projects.

A2017-073: Compatibility on wet concrete according to EN 13578:2003

Certified radon tightness. Test according to technical specification ISO TS 11665-13, 2017.

CE marking and declaration of performance based on EN 13813:2002 Screed material and floor screeds — Screed material — Properties and requirements — Synthetic resin screed material

CE marking and declaration of performance based on EN 1504-2:2004 Products and systems for the pro?tection and repair of concrete structures — Surface protection systems for concrete — Coating

Under the specified storage conditions the material has a shelf life of 24 months. For maximum shelf life under these conditions, see "Best before" label.

Store in original containers, under dry conditions and a temperature between 15–25°C. Do not expose to direct sun-light.

100 : 46

The consumption of Sikafloor® P 622 is between 0.3 – 0.5 kg/m² depending on the condition and porosity of the substrate. A second coat of 0.2 – 0.4 kg/m² of Sikafloor® P 622 is recommended for very porous substrates and improves the protection against rising damp.

Oven dried silica sand 0.3 – 0.8 mm should be broadcast at approximately 1.0 kg/m2 not in excess into the still wet primer.

The above consumption figures are intended as a guide only and may be higher on very rough or porous substrates.

All substrates (new and old) must be structurally sound, dry and free of laitance and loose particles. Clean floors of oil, grease, rubber skid marks, paint stains and other adhesion impairing contaminants. Mechanical surface profiling by grit or shot blasting, high-pressure water jetting, grinding or scabbling (including the necessary post-treatment) are the preferred floor preparation methods.

After surface preparation the tensile strength of the substrate should exceed 1.5 N/mm2 (check with an approved pull-off tester at a load rate of 100 N/s).

The residual moisture content of the substrate must not exceed 4% (check with e.g. CM device). The surface of the substrate can be damp but visible dry before the application. Do not apply the product when there is standing water on the surface. A dampproof course must have been properly installed and be intact.

Sikafloor® P 622 is supplied in working packs which are pre-packaged in the exact ratio. Before mixing, precondition both A and B components to a temperature of approximately 15 to 25°C. Pour the entire contents of part B into the container of part A. DO NOT MIX BY HAND. Mix with a mechanical drill and paddle at a very low speed (ca. 300 rpm) for at least 3 minutes. Scrape the sides and the bottom of the container several times to ensure complete mixing. Keep the mixer blades submerged in the coating to avoid introducing air bubbles. DO NOT WORK OUT OF THE ORIGINAL CONTAINER. 

After proper mixing to a homogeneous consistency pour the mixed Parts A and B into a fresh container and mix for another minute.

Sikafloor® P 622 should be applied when the ambient temperature is constant or falling as this will decrease the risk of bubble formation due to expansion of air that is enclosed in the concrete. After mixing, Sikafloor® P 622 is applied to the prepared substrate by spreading with a squeegee and finishing with a roller. Oven dried sand is broadcast into the still wet primer in order to improve adhesion of the following coat. The curing time of the material is influenced by the ambient, material and substrate temperatures. At low temperatures, the chemical reactions are slowed down; this lengthens the pot life, open time and curing times. High temperatures speed up the chemical reactions thus the time frames mentioned above are shortened accordingly. To fully cure, the material, substrate and application temperature should not fall below the minimum.

After application, the material should be protected from direct contact with water for approx. 24h (at 20°C). Within this period, contact with water can cause a surface bloom and/or surface tackiness, both of which must be removed. The temperature of the substrate must be at least 3K above the dew point both during the application and for at least 24 hours after the application (at 15°C).

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be removed mechanically.