PU adhesive
PU adhesive

Strong bond of flexible package lamination JZ2450/GZ2450

This solvent-based two-component polyurethane adhesive is specifically formulated for composite applications involving plastic and metal structures, capable of withstanding conditions such as 135°C for 30 minutes in aluminum-plastic steaming sterilization processes.
It offers excellent chemical resistance and moderate resistance to other environmental factors, ensuring robust performance in demanding industrial and medical settings where sterilization and durability are critical requirements.

  • description
  • Details

The solvent-based two-component polyurethane adhesive is designed for laminating a variety of materials including PET, BOPP, CPP, PE, NY, and aluminum foil. It is optimized for use with dry laminating machines operating at different speeds, ensuring versatile application across industries such as flexible packaging, labels, and industrial laminates. The adhesive provides strong bonds that enhance the performance and durability of laminated products, meeting stringent requirements for quality and efficiency in manufacturing processes.

1.Data

Data JZ2450 GZ2450
Appearance Light yellow or yellow transparent viscous liquid Light yellow or yellow transparent viscous liquid
Solid content(%) 50±2 75±2
Viscosity(cps/25℃) 500±300 500-5000
Smell No smell No smell
Mixing ratio 20 2.5-3.5

2.Recommended technology

  • Suitable for dry laminating machines of various speeds
  • The recommended ratio of 20:3 is the conventional ratio. The actual environmental humidity and printing ink have a significant impact on the composite effect. Customers should adjust the amount of curing agent appropriately according to the actual situation.
  • When diluting, add the solvent to the main agent according to the required solid content, stir thoroughly, then add the curing agent, and stir evenly before use. Note: The water content of ethyl acetate shall not exceed 0.03%, and the alcohol content shall not exceed 0.02%. When the solvent contains active hydrogen (such as alcohol, amine), side reactions will occur, resulting in a decrease in the effective content of the curing agent. In actual use, the mixing ratio should be adjusted appropriately according to the situation.
  • In order to evaporate the solvent in the adhesive layer of the substrate film, the drying efficiency of the drying machine should be improved as much as possible.

3.Amount of adhesive &Curing

  • The recommended coating amount is ≥4g/㎡ (dry basis). In actual application, customers can increase the coating amount appropriately according to the situation.
  • The composite product should be cured in a curing room at (60-70)℃ for at least 72 hours.

4.Storage & Safety

  • In a dry, clean, cool environment at 5-30℃, unopened JZ2450/GZ2450 can be stored for 12 months.
  • After contact with glue, it should be thoroughly cleaned, including work clothes, protective glasses, masks and gloves stained with glue.
  • Be careful! Empty barrels of glue after use also contain hazardous substances. Please handle according to the instructions on the barrel label and do not use these empty barrels without professional cleaning.
  • If you need more safety information, please refer to our product safety data sheet.

5.Packing data

  • JZ2450:20KG/Barrel OR 200KG/Barrel
  • GZ2450:4KG/Barrel OR 20KG/Barrel