adhesive WY2546
adhesive WY2546

Solvent free laminating adhesive for steaming package WY2546A/B

The adhesive demonstrates exceptional resistance to 121℃/30min Al-plastic steaming sterilization, ensuring that composite products maintain their structural integrity and performance under rigorous sterilization conditions.
This specialized lamination adhesive is formulated for applications involving AL-plastic laminates, specifically PET/AL and PET/VMPET structures.
It effectively bonds these materials together, preserving their barrier properties and durability during sterilization processes commonly used in medical, food, and industrial packaging.
This resilience makes it well-suited for environments requiring high standards of hygiene and product safety.

  • description
  • Details

The solvent-free polyurethane adhesive is tailored for lamination in flexible packaging applications, suitable for bonding structures comprising OPP , PE , CPP , PET , AL , PA , and other materials.

This two part polyurethane adhesive formulation ensures robust adhesion between these diverse substrates, enhancing the structural integrity and barrier properties crucial for various packaging requirements. It excels in maintaining product freshness, durability, and hygiene standards, making it ideal for both food and non-food packaging solutions where reliability and performance are paramount.

package adhesive22

1.Physical data:

Product Code WY2546A WY2546B
Color Yellowish clear liquid  Yellowish clear liquid
Solid content(%) 100% 100%
Composition -NCO -OH
Viscosity(CPS/25℃) 2000±1000 3500±500
Density 1.14±0.05 1.15±0.05

2.Procedure

Equipment Solvent-free adhesive laminating equipment(Manual or Automatic)
Mixing ratio A:B=100:(40-60)
Running speed ≤300M/min
Coating amount ≥1.1g/㎡
working temperature 30℃-45℃
Aging temperature Curing in a curing room at50-60℃
Aging time ≥72h

3.Storage & Safety

The unopened WY2546A/B can be stored for 10 months in a dry and clean environment between 5 and 30°C.

Once the drum is opened, the unused product must be sealed and used up as soon as possible. Wash thoroughly after using adhesive, including work clothes, protective glasses, masks and gloves stained with adhesive.

Be careful! Empty drums of adhesive after use also contain hazardous substances.

Please follow the instructions on the label of the drum and do not use these empty drums without professional cleaning.

If you need more safety information, please refer to our product safety technical instructions.

4.Packing Information

WY2546A: 20kg/drum or 200kg/drum

WY2546B: 20kg/drum or 200kg/drum

5.Regulations

Complies with the provisions of the US Food and Drug Administration FDA CFR21.175.105

Complies with the national standard GB 9685 Hygienic Standards for the Use of Additives in Food

Containers and Packaging Materials for items related to adhesives Complies with the national standard GB 9683 Hygienic Standards for Composite Food Packaging Bags for items related to adhesives