| 摘要 |
This invention provides a forming material which is cured within a short period by a small amount of water, has a molding property necessary for forming and has a sufficient fixing function. In a forming material 4 where a granulated material 1 coated with a moisture-curable urethane prepolymer 2 is tightly sealed with a water-permeable material 3 having smaller openings than the size of the granulated material, the moisture-curable urethane prepolymer 2 is a polyurethane prepolymer comprising polyisocyanate and a polyol and the polyisocyanate NCO % contained therein is made 1-5% by weight.
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