Waterproof screw, sealing material, method for structure installation, and structure for structure installation

作者: Hiroki Fujii , Tetsuro Taga , Shinichiro Kose , Yoshiaki Mitsuoka

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摘要: A waterproof screw includes a member including head portion and shank sealing material covering the circumference of portion. In material, tackiness surface at outer side in radial direction is lower than that inner thereof has shear storage elastic modulus G′ 25° C. measured frequency 1 Hz 50000 Pa or less.

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