4 Simple Methods to Check The Quality of Book Binding Adhesive Glue
How to distinguish the quality of book binding adhesive glue?
As a manufacturer with 24 years of experience in R&D and manufacturing of hot melt adhesives, WINLONG will teach you how to distinguish its quality from several aspects.
#1 First, you can use the same paper and use different machine speeds to test the glue. Through this test method, you can judge the bonding effect and tensile force of this hot melt adhesive.
#2 In the same machine, at the same speed, use different papers to test the bonding effect and tensile force of this hot melt adhesive.
#3 Put the glued paper in the refrigerator, freeze it for about 1-3 hours, take out the paper at different times, separate the glue from the middle, and observe whether the paper is broken or brittle to judge the glue Weatherability conditions.
#4 Of course, for the hot melt glue itself, it is necessary to observe whether there are impurities in the glue, whether there are bubbles, and the consistency of the glue when heating it, so as to judge the quality of the glue.