Durability of Joint Sealing Tapes on the basis of a Pre-Compressed Polyuretfaane Foam

摘要

In the paper there was analyzed a mechanism of loss of performance in properties of joint sealing tapes on the basis of pre-compressed flexible polyurethane foam. The results of tests reflect the operation of the two main functional factors are discussed, i.e. resistance to change in temperatures and resistance to the effects of UV radiation in the presence of moisture. After those tests the water tightness of the samples, appearance and the remaining compression deformation were assessed. The results of laboratory tests showed that the biggest influence on the remaining compression deformation in the tapes has UV radiation and the main reason for the loss of water tightness are changing temperatures.