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When the temperature is high,Hot melt adhesive granulesThe surface will slightly soften and adhere to each other, with severe cake formation throughout the bag, blocked feeding ports, and uneven adhesive glue. This is not a quality issue, the main reason is that the “storage temperature” and “softening point” are not aligned.
| Scene | Suggestion |
|---|---|
| Room temperature warehouse, ordinary production line | Select conventional EVA pellets with a softening point above 85 ℃ |
| Workshop without air conditioning, high temperature in summer | Choose high softening point (95 ℃+) or PO type for better temperature resistance |
| Slight clumping has occurred | After sieving and manually breaking apart, use it as soon as possible to avoid material jamming in the melting tank |
Sunlife hot melt adhesive provides high softening point books, magazines, and packaging pellets for the high temperatures in southern summer. Guangzhou Sunlife Trading can recommend grades according to your warehouse conditions to reduce clumping from the source.
Q1: Can it still be used if it’s clumped?
Slight clumping can be used for sieving; Hard cake like material is recommended to be discontinued to prevent blockage.
Q2: Is it the same reason for becoming brittle in winter?
On the contrary, winter is characterized by low temperatures and brittleness, while summer is characterized by high temperatures and softness, both of which are related to the softening point.
Q3: Is it feasible to temporarily store ice in the freezer?
Short term cooling is possible, but when removing it, it should be warmed and moisture-proof to avoid condensation water entering the adhesive.
Direct answer: One kilogram of hot melt adhesive granules specifically designed for books and periodicals, estimated to be able to hold approximately 80-120 books in a common A4 booklet (about 150 pages, with a book back length of about 29.7 centimeters); There are more pocket books and thin books, up to 150 or more; Thick […]
What are the ways to change the demand for packaging hot melt adhesive? Decades ago, primary packaging was the main focus of manufacturers, shop owners, and consumers. In most cases, few people handle the goods before they enter the hands of shop owners and consumers. However, once the hypermarkets began to take effect, increasing the […]
Conclusion: Conventionalhot melt adhesiveParticles are not classified as dangerous goods Conventional EVA and APAO based hot melt adhesive particles are not classified as dangerous goods. It is a solid particle at room temperature, free of organic solvents, with a flash point generally above 250 ℃. It is neither flammable nor explosive, and is not listed […]
The core of Guangzhou flatbed hot melt adhesive isMoisture and heat resistance, good leveling, strong initial adhesion, and adaptable opening timePriority selectionModified EVA (mass production) or PUR (high-end)Accurately match according to the substrate, equipment, and season, avoiding “soft in summer and brittle in winter, opening glue in the south”. 1、 Guangzhou climate pain points (key […]
