What is the typical melting point of hot melt adhesive particles?

Hot melt adhesive granulesWhat is the typical melting point?

There is no unified “melting point” for hot melt adhesive particles, which are more commonly used in the industrysoftening pointandRecommended temperature for useTo describe. The softening point of common EVA hot melt adhesive particles is about 70 ℃ -110 ℃, while the actual coating (gluing) temperature is usually between 150 ℃ -190 ℃ – much higher than the softening point, because it needs to fully melt and flow to penetrate the paper fibers.

Why is the coating temperature much higher than the softening point?

• softening pointThe temperature at which particles begin to soften only represents the ability to melt, not the ability to stick well.
• Operating temperatureThe viscosity needs to be reduced to an appropriate range in order to evenly coat and penetrate the substrate.
• Upper temperature limitExceeding 190 ℃ is prone to carbonization, smoking, and a sudden drop in viscosity, but it may not stick firmly.

Common types of temperature reference

Frequently Asked Questions (FAQ)

Q: Is a lower melting point better for use?
Answer: No, low melting point is prone to clumping in summer, it depends on the stability of the formula.

Q: Can particles be selected by melting point?
Answer: It depends on whether the recommended coating temperature matches the model. Sunlife hot melt adhesive is provided with a process card for each batch.

Q: How to remedy the temperature setting error?
Answer: Immediately call back to the recommended range, clean the carbonized rubber, and avoid pipe blockage.

We need an accurate temperature window to obtain the process parameters for the corresponding model of Sunlife hot melt adhesive from Guangzhou Sunlife Trading.