Retention of movement capability of polyurethane sealants in the tropics
Authors
Citation
International journal on architectural science, v.5, no.1, 2004, pp. 5-10
Abstract
The adequacy of standard testing methods for movement capability of sealants under tropical conditions was reviewed. A new method involving prolonged exposure to heat and water was proposed and tested. The study has shown that the proposed methodology for accelerating the effect of artificial weathering may be a better representation for the tropical conditions. The study has also shown that a combination of a hydrophobic polyester, a water-absorbing agent, an anti-oxidant package and a silane adduct can significantly improve the retention of movement capability against water and hear.
(1) Introduction
(2) Methodology
(a) Sealant formulation
(b) Selection of commercial PU Sealants for comparison
(c) A modified ASTM C719 method
(i) Apparatus
(ii) Procedure
(iii) Requirements
(3) Results and discussion
(4) Conclusion
(5) References
Description
Subject
Type
Article
Format
Date
2004
Language
en