Is it better for the viscosity of hot melt adhesive particles to be higher? A parameter list

Hot melt adhesive granulesIs it better to have a higher viscosity?

No. Viscosity is just one of the many parameters of hot melt adhesive. Blindly pursuing high viscosity can lead to problems such as overflow, penetration, and difficulty in cleaning. Choosing particles depends on “matching”, not on a single number.

Key parameter list

• Melt viscosityAffects flow and coating, requiring matching of machine type and coating method.
• Opening hoursApply to the adhesive window of the press fit, and the high-speed line should be long.
• Curing speedThe box should be sealed quickly, and the books and periodicals should be moderate.
• softening pointDetermine temperature resistance and seasonal stability.
• Polarity/ImmersionDetermine whether it can stick to difficult to stick surfaces such as PET and PP.

Viscosity orientation in different scenarios

Frequently Asked Questions (FAQ)

Q: Does high viscosity make it stick firmly?
Answer: Not necessarily, excessive high viscosity can cause glue overflow and make it difficult to apply evenly.

Q: How do I know what viscosity to use?
Answer: Ask the manufacturer by paper type/box type/model, Sunlife hot melt adhesive provides parameter combinations.

Q: Can viscosity be adjusted on site?
Answer: It mainly depends on the model selection, and the temperature is only fine tuned for fluidity.

I’m not sure about the selection, Guangzhou Sunlife Trading will match the viscosity scheme of Sunlife hot melt adhesive according to your production line.