Why is hot melt adhesive not sticking?
There are several reasons for the poor adhesion of hot melt adhesives:
1. The hot melt adhesive needs to be glued according to the material. If the type of hot melt adhesive selected is wrong, the material cannot be bonded.
2. The melting temperature is not enough. If the temperature is not enough, the hot melt adhesive is not fully melted, and the connection cannot be produced well.
3. When bonding, the hot melt adhesive does not exert enough pressure on the adherend after melting.
4. When bonding, there is not enough hardening time for the hot melt adhesive.
5. The surface of the object to be bonded has not been cleaned, and there is dust or impurities that affect the bonding.
Visit: How does hot melt adhesive stick firmly?
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