Sikafloor® BC 375 N

Sikafloor® BC 375 N 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.

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.

Under the specified storage conditions the material has a shelf life of 18 months. For maximum shelf life under these conditions, see “Best before” label.

Store in original drums, under dry conditions and a temperature ranging from 15 – 25 °C. Do not expose to direct sunlight and keep the temperature within the abovementioned range.

100 : 22

7 days at 23°C

Approx. 1,0 – 2,5 kg/m²

Sikafloor® BC 375 N must be applied to primed substrates. The substrate must be load bearing, free of loose and brittle particles as well as substances, which impair adhesion such as oil, grease, rubber skid marks, paint or other contaminants. Pre-treatment is only necessary when the re-coating interval of layer before has been exceeded.

After surface preparation the tensile strength of the substrate should exceed 1.5 N/mm2 (check with an approved pull-off tester i.e. "Herion" 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 temperature of the substrate must be at least 3K above the current dew point temperature. A damp proof has to be installed and must be intact.

Sikafloor® BC 375 N 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.

After mixing, Sikafloor® BC 375 N is applied to the substrate coated with a primer, using a notched trowel or scraper. The tooth size should be selected according to the required layer thickness (take care not to go below min. recommend coverage rate or to exceed max. recommend coverage rate). For challenging application conditions, the optional use of a coarse foam roller improves the final aesthetics. To remove air bubbles, spike roll 5-10 min. after application.

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, the substrate and the 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.

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