聚氨酯、聚脲及其混合物（均指 如PUs）在涂料行业和 许多公司都在推广。这对我们来说很重要 指定和使用这些涂层的人员应了解 他们的背景和微妙的技术差异 在各个制造商推广的产品之间。 理解这些差异可能很困难。成百上千 PUs的功能已经在许多领域得到开发和利用 多种用途，以及许多其他化合物 在未来发展。这个最先进的技术委员会的宗旨 本报告是对厚膜聚氨酯的基本介绍 工程师、业主、承包商或 最终用户。关于厚膜成分的信息 PUs，它们是如何分类的，以及它们的一般特征 提供了性能特征。

Polyurethanes, polyureas, and blends thereof (all referred to as PUs) have become prolific in the coatings industry and are being promoted by many companies. It is important for those who specify and use these coatings to understand their background and the subtle technological differences between the products promoted by various manufacturers. Understanding these differences can be difficult. Hundreds of PUs have already been developed and utilized in many diverse applications, and many other compounds may be developed in the future.The purpose of this state-of-the-art technical committee report is to provide a basic introduction to thick-film PU coatings technology for the engineer, owner, contractor, or end user. Information about the components of thick-film PUs, how they are classified, and their general performance characteristics is provided.