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High Molecular Weight Copolymer with Basic Adhesive Groups

Product Description

The product (HG-CohesivePro 4002) is high molecular weight copolymer with basic adhesive groups which is adsorbed on silicon dioxide. The product features affinity functional groups to substrate and is designed to be used as a adhesion promoter for powder coatings to improve its adhesion to substrates. More specifically, HG-CohesivePro 4002 can be used for various powder coating systems based on epoxy, polyester, and polyurethane resin, as well as their combinations. Moreover, it can simultaneously act as wetting additive for powder coatings.

Features

HG-CohesivePro 4002 owns many notable features, including:

  • Can greatly improve the adhesion of the powder coating to metallic substrates that suffered various pretreatment.
  • Can improve substrate wetting in the case of insufficient pre-treatment.
  • Can improve the adhesion of powder coatings to non-metallic substrates.
  • Can still maintain good adhesion even after immersion test.

Typical Properties

PropertiesHG-CohesivePro 4002
Actives Content63%
AppearanceFine white powder
Density (20 °C)1.35 g/ml
Residue After Calcining34%

*Comments: The properties given here are typical of average lots. Alfa Chemistry does not represent that products in any particular batch will exactly conform to the values given.

Application Methods

Depending on the purpose of use, the product is added to the powder coating formulation at 0.5-3% level based on the total formulation. Then the product is mixed with resin, curing agent, pigment and other raw materials through a high-speed mixer, so that the product can be evenly dispersed in the system, and then extruded. Uniform dispersion will enable the powder coating to achieve the best performance.

* The above product dosage is for reference only, and the optimal dosage needs to be determined through a series of experiments. In addition, if you need more details, please feel free to contact us.

Packaging and Shelf Life

  • The packaging of the product varies slightly in different regions, please contact our sales staff for accurate information. It is worth mentioning that we can customize the packaging according to customers‘ requirements.
  • Shelf life is 36 months if the product in the unopened packaging and stored under suitable conditions.
Industrial Engineering