Description
TACKWHITE AP 79 is a water-borne pressure sensitive adhesive, based on various acrylic latices in physical blend.
Due to its composition, it displays very good ageing properties, including light stability.
Application
TACKWHITE AP 79 has been designed for the production of protective PE films.
It can be used also for the production of PSA protective films with low peel adhesion and perfect removability and for removable labels.
Technical Specifications
| Method of analysis | MU | Standard |
|---|---|---|
| 1 Total Solids | % | 50±2 |
| 3 Brookfield Viscosity 25°C | mPa.s | 500 - 2000 1 |
| 8 pH | pH | 8 - 9 |
| Solvents | water | |
| 1 N. 2 RV; 20 RPM | ||
Film properties
| Method of analysis | MU | Standard |
|---|---|---|
| 11 Peel Adhesion on Steel | g/in | 250 |
| 17 Rolling Ball Tack | cm | > 20 |
| 22 Static Shear | h | > 50 |
| 97 Loop Tack Test | g | 250 |
| Average values; 22±2 g/m² of dry adhesive on PET film 36 µm | ||
Handling
TACKWHITE AP 79 is ready to coat by Mayer bar or air knife coating systems; higher viscosity versions can be supplied on request for rotating blade or direct knife coating systems.
If necessary, it can be diluted with water.
The product can be cured with a small amount of Curing Agent X7 (0,5-1%), this crosslinker works better at high pH, so, if necessary, we suggest to add ammonia to reach pH = 9.
Packaging
The product is supplied in iron drums (200 kg); IBC containers (1000 kg).
Storing
TACKWHITE AP 79 must be stored at temperatures between +5°C and +40°C.
Keep containers well sealed, in order to avoid surface skin formation.
Use within 6 months from production date (unopened and in the original packaging).