AT6370A/AT6370B Laminating Polyurethane Adhesive
- Courier
- In detail
AT6370A/B is an alcohol based two-component polyurethane adhesive for general purpose, widely used in laminating of various treated film like BOPP﹑PET﹑PA﹑CPE﹑CPP﹑VMCPP﹑etc .
Technical Properties
These properties are typical but do not constitute specifications.
Item | AT6370A
(OH component) |
AG6370B
(NCO Component) |
Type | Main agent | Hardener |
Appearance | Light yellow transparent liquid | Light yellow transparent liquid |
Solid Content(%) | 70±2 | 70±2 |
Viscosity (mPa.s20℃) | 6000±2500 | 4000±2000 |
Solvent | Alcohol | Ethanol, Ethyl acetate |
Specific gravity | 0.93-0.97 | 0.93-1 |
Mix Proportion | 3 | 2 |
Shelf life | 360days | 300days |
Typical Features:
lHigh peeling strength.
lHigh transparency
lWith high solid content, suitable for food and medicine soft packaging
lComply with US FDA 21CFR175.105.
Recommended Operating Conditions
¨ Application MethodDirect gravure
¨ Application Cylinder100-200 line (65-80 line per cm)
¨ Application solids20-35% (Recommend 30%)
¨ Pot LifeStatic8 hours approximately
¨ Dynamic24 hours approximately
¨ Dry Coating Weight1.5-3.0 gsm depending on structure
¨ Drying Section Temperature55-65 ℃ 65-75 ℃ 75-85 ℃(three section)
¨ Laminating Temperature50-80 ℃
¨ Cure Time24 hours (40-50 ℃ )
¨ Cleaning SolventEthanol.