| 摘要 |
PROBLEM TO BE SOLVED: To provide a coated floor construction method forming aqueous urea urethane coating on cement backing of mortar, concrete, or the like, constructing in a short period of time even for thick coating with a thickness of about 3-5 mm, and forming a floor material having excellent appearance with no formation of pinholes, cracks, blister, or the like and having sufficient strength with no exfoliation from the cement backing. SOLUTION: The coated floor construction method comprises processes for: (1) applying a first primer mainly composed of water-soluble epoxy resin, to the cement backing and hardening it, (2) applying a second primer mainly composed of water-soluble epoxy resin, to a first primer hardened surface, and (3) further coating the aqueous urea urethane paint consisting of hydraulic cement, aggregate, water, polyol and an isocyanate compound. In the process (3), coating is carried out with no fluidity in the second primer with tackiness still remaining. COPYRIGHT: (C)2008,JPO&INPIT
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