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UnopenedHot melt adhesive granulesIt can usually be stored for 12-24 months in a cool and dry place; Once opened, it is recommended to use it within 3-6 months. Whether it is sealed or not directly determines whether the rubber particles will absorb moisture, clump, and decrease in performance.
| Comparison item | Store in a sealed container | Open storage |
|---|---|---|
| Moisture absorption risk | low | high |
| Shelf life | more than 6 months | 1-3 months |
| Performance on the computer | stable | Easy to bubble and break strips |
Sunlife hot melt adhesive is packaged in double layers of moisture-proof inner film and outer woven bag. After opening, it is promptly sealed to effectively extend its shelf life. Guangzhou Sunlife Trading also supports small batch delivery based on weekly usage, reducing long-term open storage.
Q: Can expired rubber particles be used?Not necessarily. Conduct a sample test first, and if the performance meets the standard, it can still be downgraded for use.
Q: Can damp rubber particles recover after drying?Mild moisture and low-temperature drying can be salvaged, while severe clumping is recommended for disposal.
Direct conclusion: EVA hot melt adhesive particles have fast curing, high initial adhesion, and affordable price, making them the main force for book binding and carton sealing; APAO hot melt adhesive particles have a long opening time, wide temperature resistance range, and good flexibility, making them more suitable for large-area composite and weather resistant applications. […]
Conclusion first:For printing factories with monthly usage of less than 2 tons and multiple machines for dispersed use, 25kg bags are more cost-effective; Packaging factories with stable monthly usage exceeding 3 tons and centralized feeding conditions have lower unit prices and more labor-saving for ton bags (500-1000kg bags).The price difference between the two is usually […]
When using hot melt adhesive granules for book binding equipment, there are two options to compare: “replace adhesive after quick emptying” and “replace adhesive after thorough cleaning”. The former saves downtime, while the latter can reduce the impact of coking materials, foreign objects, and old rubber on the performance of new rubber. Sunlife hot melt […]
EVA hot melt adhesive is a type of plastic adhesive product. The physical state of hot melt adhesive changes with temperature within a certain temperature range, but its chemical properties remain unchanged. Hot melt adhesive is non-toxic and odorless. How much do you know about the six major ways of applying hot melt adhesive? 1. […]
