摘要 |
A composition for a butyl tape for car door sealing is provided to improve self-adhesive property, vibration-damping property, anti-corrosive property and water tightness, and to significantly improve physical properties including penetration, elongation, shear strength, tensile strength, etc. A composition for a butyl tape for car door sealing comprises: 4.9-6.1 wt% of polyisobutylene-based rubber; 13.7-17.8 wt% of butyl rubber; 1.2-2.3 wt% of a metal oxide; 10.0-14.1 wt% of carbon black; 9.1-12.7 wt% of calcium carbonate; 20.3-23.7 wt% of talc; 22.5-27.4 wt% of polybutene; 2.1-5.3 wt% of a C-5 petroleum resin; and 2.7-4.4 wt% of a C-9 petroleum resin.
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