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Polycarbonate diol-based polyurethane sealants with improved weathering and chemical resistance intended for building and construction

Tech Paper | Supplied by UBE

How can we improve the ageing of PU sealants? Today most of currently commercial PU sealants based on polyether/polyester polyols show limited resistance against ageing. In this Tech presentation, learn how polyurethanes made with polycarbonate diol showed lower yellowness after thermal degradation, and higher retention of chemical resistance.

PU sealants made with Eternacoll® polycarbonate diol not only showed good mechanical performance after immersion in different solvents/chemicals, but also improved the resistance to hydrolysis and degradation in solvents/chemicals.

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