Low temperature sealing adhesive composition

摘要

An adhesive composition for roofing such as shingles is disclosed which is composed of a hard asphaltic bitumen fraction having a penetration number at 77 DEG F. of from 0 to 30 dmm and a softening point of from about 150 DEG to 220 DEG F. and an elastomeric composition composed of a thermoplastic elastomer and a plasticizer wherein the overall adhesive composition has a penetration number of from 30 to 100 dmm at 130 DEG F. and a softening point of 140 DEG to 230 DEG F. The inventive composition is self-sealing and exhibits excellent squash resistance, low temperature properties and resistance to blowoff. The composition can be used with shingles as well as other types of roofing coverings.