PUR0428 adhesive for cloth-on-cloth and cloth-on-film
Single component PU adhesive.
Suitable for paper-plastic lamination.
This adhesive has excellent initial adhesion and can be quickly attached to various surfaces in a short time, providing a good initial bonding effect.
At the same time, its bonding strength is excellent after curing, which can ensure long-term strong bonding and adapt to a variety of complex application environments.
After curing, the material's high temperature resistance is particularly outstanding, and it can work stably for a long time under high temperature conditions and maintain a good bonding effect.
- description
- Details
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1. product data
parameter single component solid content(%) 100 viscosity(cps/85℃) 3000±1000 density(g/ml.85℃) 1.10±0.05 smell No smell appearance Viscous liquid 2. recommended procedure
The coating must be done on a special laminating machine with multiple rubber roller gluing systems.
Metering rubber roller: 80～85℃
Transfer roller: 85～90℃
Coating roller: 85～90℃
Glue amount: ≥1.0g/㎡ (different conditions).
The recommended glue amount for paper-plastic structure is 3.0～4.0g/㎡, paper-aluminum-plated and paper-aluminum structure is 4.0～5.0g/㎡, and the recommended adhesive amount for plastic-plastic structure is 1.0～2.0g/㎡
Laminating temperature 45-55℃
When the room temperature is ≥25℃, the next process can be carried out 24h after the two layers are laminated, and it can be completely cured after 7～10 days.
3. Storage & safety
- In a dry and clean environment at 5-25℃, the shelf life of the original unopened product is ≤10 months.
- The opened and unused product should be used up as soon as possible.
- Be careful! Empty barrels of glue 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.
4. Packing Info.
- 16kg/drum or 160kg/drum
5. Cautions
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During use, due to the diversity of film types, printing inks, lubricants and surface treatment conditions of each user, the equipment process conditions and packaging structure will be different. It is recommended that each user conduct tests first.
This product contains MDI polymers, which may affect the heat sealing strength in the product structure of PE and EVA. Please test and confirm that the product is feasible before formal production.
The environmental humidity has a significant impact on the composite effect. The environmental humidity should be kept relatively stable during use. If the relative humidity of the environment is lower than 30%, the environment needs to be humidified. When plastic/plastic composite, if the relative humidity of the environment is lower than 30% and higher than 80%, the environment needs to be humidified.
The two substrates to be composited must be corona treated, and the surface tension of polyethylene and polypropylene films should be as large as possible
40mN/m; the surface tension of PET film should not be less than 45 mN/m, and the surface tension of PA film should not be less than 50 mN/m.
If the machine is stopped (more than 60 minutes), the five-roller gluing system should be thoroughly cleaned with a solvent/plasticizer mixture before the adhesive becomes insoluble (be careful). When the machine is completely stopped, the same cleaning procedure should be carried out as above.
