Abstract

The past two years have seen a rapid development in applications of PUR hot melts for bonding of sandwich and compound elements. Some adhesive manufacturers have developed new formulations of reactive PUR hot melts with high hot tack and extremely long open times, and this was matched by progress in the engineering sector, with innovative roller systems for processing reactive PUR hot melts, among others with new coating systems, and also introduced totally new machinery designs, for instance for the door assembly (Figure 1).

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