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New ASTM Guide Helps Predict Building Sealants Performance

A new guide aims to help predict how building sealant systems will perform over time using accelerated testing methods. The new standard (soon to be published as C1850, Guide for Improved Laboratory Accelerated Tests to Predict the Weathering and for Developing Methods to Predict the Design Life of Building Sealant Systems) was developed by ASTM International’s committee on building seals and sealants (C24).

The guide outlines a systematic way to develop realistic tests that show the long-term impact of weathering and other factors. The proposed standard could be useful for anyone in charge of choosing or buying sealants and could potentially serve as a model for the development of accelerated testing standards for other materials.

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