The setting time of the hot melt adhesive refers to the time for the hot melt adhesive to be positioned, and the time required for the adhesive to produce a certain strength within the curing time. The setting time of hot melt adhesives for some adherends with greater elasticity and greater stress is very important. If the setting time is long, the initial strength will be insufficient and the bonding surface of the adherend will spring.
The setting time is not only affected by various components in the hot melt adhesive, but also by the environmental temperature. For example, the use of wax in the composition, the use of high crystallinity, high melting point wax can shorten the setting time, and vice versa; the lower the ambient temperature, the faster the heat dissipation, and the shorter the setting time