Do you use the same batch number for hot melt adhesive particles in summer and winter? Seasonal glue list

Conclusion first: Try not to mix the same batch number across seasons as much as possible

Hot melt adhesive granulesThe performance fluctuates significantly with temperature. High temperature and humidity in summer, low temperature and dryness in winter, using the same adhesive can easily lead to “summer rebound and winter cracking”. It is recommended to switch or choose a wide temperature range formula according to the season. Below is a checklist for seasonal changes.

Summer Glue List

• Priority should be given to high softening point and anti rebound formula, with a recommended softening point above 95 ℃.
• Pay attention to heat resistance when sealing the box, to avoid bulging and opening the box in the scorching sun.
• Ventilation and cooling of the warehouse, keeping the rubber particles away from heat sources to prevent premature agglomeration inside the bags.
• Reduce the working temperature of book and magazine packaging appropriately to minimize carbonization and yellowing.

Winter Glue List

• Choose a formula with good low-temperature brittleness and slightly lower softening point to avoid the adhesive layer from becoming brittle due to freezing.
• Before heating the northern workshop, warm up the rubber particles first, and let the damp particles bubble on the machine.
• Express cardboard boxes use cold chain, and the sealing glue must be tested to ensure that it does not peel off at temperatures below -10 ℃.
• The preheating time for startup is 5-10 minutes longer than in summer, and the glue is completely melted before dispensing.

FAQ

Q: Is there any adhesive that can be used universally in all seasons?
Answer: There is a wide temperature range formula that can cover temperatures from -10 ℃ to 60 ℃, but it is still recommended to use it seasonally in extreme areas.

Q: Do we need to clean the pot when changing seasons?
Answer: Mixing different formulas can easily clog the gun. It is recommended to empty the old glue and clean the pot before adding new glue.

Question: How can we reduce the fuss?
Answer: Guangzhou Sunlife TradingSunlife Hot Melt AdhesiveWe have divided the seasonal adaptation series according to books, sealed boxes, and quick printing, and can provide both summer and winter styles at once to reduce trial and error.

Remember: anti sticking in summer, anti cracking in winter, clean the pot and take samples for testing before changing the glue across seasons, and ensure that the glue packaging and sealing box do not overturn.