| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roof repair material executable by thick coating in 2-3 mm thickness although a coating layer of 0.5 mm thickness is lap-coated twice in a conventional roof repair material, and reducible in the curing time of the coating layer in one coating operation. Ž<P>SOLUTION: The roof repair material is formed by mixing 53-58 wt.% of crushed sand of a tile material with a grain diameter of 0.5-2.0 mm, 20-25 wt.% of one or more resin coating material selected from an acrylic resin coating material, a vinyl acetate resin coating material, an unsaturated polyester resin coating material and an epoxy resin coating material, 3-6 wt.% of a thickener containing polyvinyl alcohol as a main agent; 4-7 wt.% of calcium carbonate, 1-2 wt.% of silicon, 3-6 wt.% of cement and 7-9 wt.% of water. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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