Views: 4 Author: Site Editor Publish Time: 2018-07-02 Origin: Site
Hot melt adhesives melt under high temperatures.
You have to apply these adhesives to an object and adhere another object to it before these adhesives cool and lose their adhesive properties. The open time is the period of time from when the adhesive is applied to the adherend to when the adhesive cools to the point that it loses its adhesive properties. The open time is normally a length of time from a few seconds to a few minutes and is determined on the basis of the usage conditions, ambient environment, and hot melt adhesive mixture.
The setting time is the period of time until the hot melt adhesive applied to the adherend cools, solidifies, and exhibits its initial adhesive strength.