No, the concrete must be prepared by mechanical means to receive a thin-set mortar. New concrete surfaces should be wood-floated or broom-finished. Mechanically prepare concrete substrates to a minimum International Concrete Repair Institute (ICRI) concrete surface profile (CSP) of #2 to #3 for setting mortars. Grinding with a diamond blade is sufficient in most installations.
You can use Topcem Premix or Mapecem 102 to level your concrete slab. If you have freeze/thaw cycles in your area, substitute the mixing water for Planicrete AC to Topcem Premix or use Mapecem 202.
No, self-leveling products are recommended for interior applications only. You can apply a concrete repair mortar instead, such as Topcem Premix or Mapecem 102.
Yes. You need to follow the American Concrete Institute (ACI) 306R-10 Guide to Cold Weather Concreting. This guide will show you how to comply with the required application temperature. You can also refer to MAPEI’s “Installing repair materials in cold weather” reference guide.
No. The surface must be thoroughly cleaned of any substance that could interfere with the bond of the installation material, including dirt, paint, tar, asphalt, wax, oil, grease, latex compounds, form-release agents, laitance, loose toppings, foreign substances and any other residues.
Yes, you can add color or apply a stain to your repair mortar. It is important that you do your own mockups to make sure that you obtain the desired results.
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