Water resistant adhesives - Tappi
The Tappi (Technical Association of the Pulp and Paper Industry) test that is performed here is described in the paper T 812 om-97.
The method describes a laboratory test for evaluating the resistance to ply separation of solid or corrugated fiberboard after exposure to water. It is intended primarily to distinguish between boards fabricated with weather resistant adhesives and those with nonweather -resistant adhesives.The test performed at Intercol is done with corrugated board.
Special features:
PR0043 water resistant adhesive is developed for bonding PE foil with carton. Also able to bond PE foil with PE foil.
Special properties of the adhesive:
- When bonding PE with PE substrates minimal drying time is 2 to 3 days.
- Water-resistant
Technical data:
| Composition | Adhesive based on co-polymer dispersion |
| Brookfield viscosity | 1.100 mPa.s ( HAT; spindle 3; 50 rpm; 20°C) |
| Solid content | 55,0 % |
| pH | 5,5 |
| Colour | Beige |
Application in US food packaging:
Conform to FDA CFR 21§ 175.105 (adhesives)
Method of application:
Suited for roller and nozzle-systems.
Cleaning:
Cleaning can be performed with water.
Packaging:
30 kgs. drum – 1000 ltr. Container.
Storage:
Keep the containers closed and store preferably at room temperature.
The adhesive is sensitive to frost. Shelf life is six months.