Two-component polyurethane glues
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Two-component polyurethane glues
Emergence two-component polyurethane became the following big step in development of technology of solventless glues systems. They consist of a polyurethane prepolimer and polyol. Both substances have quite low viscosity. Their mixture it is carried out at the room temperature, and, it can be carried out as in the built-in mixer, and grinding later drawings on the stuck together surfaces. In two-component systems it is necessary to pay special attention to correctness mixing proportions. The proportion 2:1 (double excess of an isocyanate) strongly increases hardening process in time. Two main problems of the very first representatives of this subgroup (Kleyberit 542) were low initial viscosity of composition, as a result, a low initial skhvatyvaniye which in modern systems (Kleyberit 578) were with are decided by success that allows to apply them in the automated lines conveyor-based since hold time under press pressure for them makes no more than 1 minute.Contact the seller
Two-component polyurethane glues
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