12-02-Book Binding Adhesives-Book Back Binding Adhesives-PUR-7215
Wanli® PUR hot melt adhesive PUR-7215 for book back bonding is a
single-component reactive PUR hot melt adhesive with 100% solid
content. PUR-7215 can be used for paper, PET, PVC, and thin metal
sheets. PUR-7215 is featured stable viscosity under heating at a
certain temperature, high initial bonding strength and final
bonding strength, the flexibility of the adhesive layer is good,
and the curing time is about 2-4 hours. After curing, it has good
peeling strength, good heat&humidity resistance and chemical
resistance.
APPLICATION
Wanli® PUR hot melt adhesive PUR-7215 is used for book back
bonding. PUR-7215 can be used for paper, PET, PVC, and thin metal
sheets.
| Application Material | Book Back Binding Adhesives |
| Appearance | White to Yellowish Solid |
| Component | PUR (Polyurethane) |
| Application Industry | Book Back Binding Adhesives |
| Solid Content | 100% |
| Operating Temperature | 110～140 ℃ |
| Melt Viscosity | About 1000mPa·s@140℃(Brookfield-ASTMD3236) |
| Open Time | About 2min |
| Usage Scope | For Paper, PET Sheet, PVC Sheet, Thin Metal Sheet |
| Shelf Life | 6 Months |
| Package | 2Kg/Bag, 20Kg/Barrel, 200Kg/Barrel |
FEATURE
Stable viscosity under heating at a certain temperature.
High initial bonding strength and final bonding strength.
After curing, it has good peeling strength, good heat&humidity
resistance and chemical resistance.
USER GUIDE
The package of PUR-7215 is suitable for various dispensing
equipment.
The recommended operating temperature is 110℃~140℃.
In order to achieve complete curing, it is better to place finished
product in a working environment with suitable temperature and
humidity (recommended temperature: 23~25℃, about 65% relative
humidity).
STORAGE
Store the product where it’s dry, cool and avoid direct sunlight.
The storage temperature should be no more than 35℃ and avoid open
fire or heat source.
