In dry, windy or hot conditions, mist with water to maintain a continuously wet surface until the product has achieved sufficient strength. The use of SET Control retarding admixture will help offset the effects of high temperatures.ĬURING: SKIM COAT does not require water curing or curing compound under moderate conditions at 70☏ (21☌), but it is recommended. To compensate for warm temperatures, keep material cool, or use chilled mix water. ![]() Higher temperatures will have a more pronounced effect. WARM WEATHER: Environmental and material temperatures above 70☏ (21☌) may speed setting time and increase the rate of strength gain. To compensate for cold temperatures, keep material warm, or use heated mix water. Thinner sections will be more significantly affected. Lower temperatures will have a more pronounced effect. The working time of SKIM COAT is approximately 15 to 20 minutes at 70☏ (21☌) ambient temperature.ĬOLD WEATHER: Environmental and material temperatures below 70☏ (21☌) may delay setting time and reduce the rate of strength gain. SKIM COAT may be applied in temperatures ranging from 50☏ (10☌) to 90☏ (32☌). To extend working time, use Rapid Set® SET Control retarding admixture or use cold mix water. After mixing, place quickly to allow for maximum finishing time. PLACEMENT: Organize work so that all personnel and equipment are ready before placement. Contact CTS Cement for more information about the use of these additives. For increased fluidity and workability, use Rapid Set® FLOW Control plasticizing admixture. Do not retemper or add additional water after initial mixing. ![]() While mixing, add SKIM COAT and mix for the minimum amount of time required to achieve a lump-free, uniform consistency (usually 1 to 3 minutes). Do not exceed 4.0 quarts (3.8 L) of water per bag. SKIM COAT may be mixed with up to 4.0 quarts (3.8L) of water per 20-lb (9.1-kg) bag. Organize work so that all personnel and equipment are in place before mixing. MIXING: The use of a drill-mounted mixer is recommended. In temperatures above 80☏ (27☌), pre-wet the substrate with water before applying SKIM COAT. Application surface must be between 50☏ (10☌) and 90☏ (32☌). Acid etching is not recommended.ĭo not use solvents or adhesive removers as means of cleaning the substrate. Smooth concrete surfaces must be mechanically abraded by grinding, shot blasting or other approved methods. SURFACE PREPARATION: Application surfaces must be clean, sound and free from any materials that may inhibit bond, such as oil, dirt, mastic, asphalt, sealing compounds, acids, wax and loose debris. Conduct a minimum of one field test using the prepared substrate and finished floor covering to evaluate the suitability of the materials and procedures. For sections deeper than 1" (2.5 cm), use Rapid Set® Cement All®, Mortar Mix or Concrete Mix. ![]() Please comply with instructions from the floor covering manufacturer regarding substrate moisture and moisture testing. Impermeable coverings and coatings can be applied over SKIM COAT in 16 hours. Most floor coverings can be installed over SKIM COAT in 1 hour. Contact your CTS representative for EPD, LEED values and other sustainability information.ĪPPLICATION: Typical application thicknesses range from featheredge to 1/4" (0.6 cm) for large areas and up to 1" (2.5 cm) for small fill areas. Production of Rapid Set cement emits far less CO2 than portland cement. For plywood substrates, use Rapid Set® Skim Floor.ĮNVIRONMENTAL ADVANTAGES: Use SKIM COAT to reduce your carbon footprint and lower your environmental impact. USES: Use SKIM COAT to repair, level and smooth cement or concrete, brick or block substrates prior to the installation of floor coverings such as VCT, sheet vinyl, carpet, tile, pavers, and other protective toppings. Use under flooring for patching and skim coating on interior and exterior projects. DESCRIPTION: Rapid Set® SKIM COAT is a smooth, fast curing, sand-free, hydraulic cement-based floor underlayment.
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