Weatherability Test of Sealants Made from Acrylic Urethane

Abstract

Bulk polymerization under high temperature and high pressure gives unique acrylic polymer.In this study,some kinds of acrylic polyurethane sealant comprised of the acrylic polymer were evaluated by accelerated weatherability test to investigate the relationships between weatherability and content,composition and polymerzation methods of acrylic polymer.It were the results that the sealantmade from the acrylic polymer of the bulk polymerization is superior to that of conventional polymerization,and that more amount of the acrylic polymer is better.On the other hand,the composition of the acrylic polymer did not affect the weatherability.