ADCOTE™ 313 is a water-based, polyethyleneimine (PEI) primer that is used to improve adhesion of paper and polyethylene in extrusion coating operations.
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Product Overview
ADCOTE™ 313 is a polyethyleneimine primer that is designed to be used in the extrusion coating of cellulosic material, primarily paper. ADCOTE 313 reduces bond variations that occur due to changes in paper surfaces and allows for improved adhesion between paper and polyethylene extrudates. ADCOTE™ 313 will improve adhesion even with coating weights as low as 3-5 lbs per ream of polyethylene. In addition, ADCOTE™ 313 is approved for direct and indirect food contact and is often used in the manufacture of films used in flexible packaging for food.
Product Specifications
Application Methods: Gravure coater, smooth roll transfer
Chemistry: PEI
Carrier: Water
Density: 8.5 lbs/gallon
Supplied Solids: 20%
Applied Solids: 1-2%
Viscosity: 17 sec., #3 Zahn
Drying Web Temperature: 150-180 °F

Primary Chemistry: Polyethylenimine
Features & Benefits
Improved adhesion to PE and paper at low coating weights
Moisture resistance
Low odor
Problems Solved
Difficulty obtaining adhesion to polyethylene, polypropylene, and paper at low coating weights
Unpleasant odor of primers for adhesives and coatings
Meat and Cheese packaging, Frozen food, general industrial, snack food packaging, confectionery packaging