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Conclusion first:cannot replaceUsed for edge sealing of panel furnitureHot melt adhesive granulesIt is designed for “high temperature, thick adhesive layer, metal and edge banding bonding”, and book binding requires “low temperature fast penetration, thin adhesive layer, and paper fiber locking”. The most typical consequence of using edge banding glue to fix the book is that the spine becomes stiff, it breaks when opened, and the cut is brushed.
| Comparison item | Edge sealing adhesive particles | Adhesive granules for book binding |
|---|---|---|
| Common operating temperature | 180–200 ℃ | 150–175 ℃ |
| Viscosity orientation | High, pursuing filling and adhesive quantity | Medium to low, pursuing infiltration of paper feed fibers |
| Adhesive layer thickness | 0.2–0.4 mm | 0.3–0.6 Mm but requires uniform penetration |
| Flexibility requirements | Low, basically no longer bent after sticking | High, the spine of the book needs to be repeatedly folded without cracking |
| Heat resistance requirements | Mainly moisture and wash resistant | Durable 60; The carriage does not soften and detach at high temperatures |
Also not recommended. The softening point of the binding adhesive particles is low, and the initial adhesion is too fast. When used on the edge sealing line, it is easy to have weak compression and curled edges at the ends. The two types of adhesives are just called hot melt adhesives, and the formula system (the ratio of base resin, thickening resin, and wax) is very different. Mixing them can also contaminate each other’s adhesive cans.
Q: The workshop has both edge banding and binding lines. Can we use the same glue to save time?
Answer: No. What can truly save is a unified supplier, packaging specifications, and batch management, rather than a unified adhesive type.
Q: What if there is a temporary shortage of materials and it needs to be used for emergency purposes?
Answer: It may exceed a batch of goods, but the durability of the finished product cannot be guaranteed and additional tank cleaning is required. It’s better to stop production and replenish materials than to bury risks in the books already delivered.
Sunlife hot melt adhesive from Guangzhou Sunlife Trading is supplied by application line, with corresponding grades for book binding, packaging and sealing, and graphic and text fast printing. If you are indeed running both types of processes, you can ask for a brand comparison table to label each device with which one to use on the body, which is less prone to errors than verbal handover.
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