RE-PEELABLE ONE-LIQUID HUMIDITY CURABLE URETHANE ADHESIVE COMPOSITION FOR FLOOR

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PROBLEM TO BE SOLVED : To provide a one-liquid humidity curable urethane adhesive composition having excellent re-peelability and permitting easy removal of residual adhesive with e.g. a chaplet without damage to a wooden flooring material during re-bonding or discriminated discarding, while retaining application and shifting workability of current one-liquid humidity bondable adhesives for floors to flooring materials. SOLUTION : The composition contains essentially (A) a urethane prepolymer having active isocyanate groups and obtained by reaction of a polyol with a polyisocyanate compound and (C) a hollow filler. The composition contains (B) 300-1, 000 pts.wt. of a filler to (A) 100 pts.wt. of a urethane polymer, and the weight percentage of the filler (C) in the filler (B) is 20-100 wt.%.