Polyureas have excellent performance and are therefore widely used in waterproofing, anticorrosion, flooring and other fields. Among the many excellent properties of polyurea, the characteristic of quick drying is highly controversial, some people think it is an advantage and some people think it is a disadvantage, so how should we look at the characteristics of quick drying of polyurea?
Polyurea is a general term for a class of materials, the curing time of different polyurea products varies, according to the construction characteristics, can be divided into spray polyurea and hand brush polyurea. Spray polyurea curing time is the quickest, usually cures and dries in 3-5 seconds. Such a fast drying time can only be achieved with specialized large-scale spraying equipment. The AB two-component material is transported to the inside of the machine, warmed up quickly, and then atomized and coated on the surface of the substrate by ultra-high-pressure jetting. Hand-brush polyurea usually refers to the polyaspartic polyurea (the third generation polyurea). Polyaspartic polyurea extends the reaction activation time, so it can realize roller coating, scraping, spraying and other construction methods.
Advantages of quick drying
Disadvantages of quick drying
The performance of any material has two sides, we should look at it discerningly. However, it is undeniable that for some emergency repairs and quick repair projects where time is money, the fast-drying characteristics of polyaspartic polyurea play an irreplaceable advantage. In addition, its high solid content, no baking, and low VOC emissions have contributed to the current "dual carbon" energy-saving and emission reduction policies. I believe that in the future, polyurea will be used in more and more fields.
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