How to test the performance of the back glue Velcro

by:BAILI     2020-10-04
Just purchase back glue Velcro back, everyone must want to test the size of the Velcro and back adhesive? So, the size of the back glue hook and loop and viscous force should be how to test? Let me give you a simple answer about this problem, hope to be of help. First of all, for size, natural and simple is to use a ruler to measure, and the back glue viscosity, need to cut a small piece of paste repeatedly, test it, sticky when tear, viscous strong will is hard to get off, good adhesive will clearly can see have a thick layer of transparent glue, like very Q. Vice is not. But if the stick on to use objects, tore back glue be careful when you do not use the back to back glue oh, because the grease, affects the viscosity of gum. Also need to pay attention to when purchasing back glue hook and loop, double-sided gum hook and loop is a variety of classification: 1. Gum magic with ordinary hot melt glue, its melting point is point, suitable for low temperature environment and winter use, its adhesion is general, also holds a more general 2. The other is a high temperature hot melt adhesive, high melting point, suitable for summer and some of the high temperature on the mechanical and adhesion is strong, strong adhesion after a strong also compares 3. Still have a kind of gum products for import, it is using imported rubber cutting into the corresponding specification adhesive hook and loop on the back of the products, are relatively special high-grade processing products, the price is higher also. General lamination processing can from 12. 5 - 200 mm wide between the specifications of the processing of gum, ordinary back glue can machining the following materials: ordinary magic stick of gum, plastic hook back glue, flannelette back glue, etc.
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