Choosing a Waterborne Polyurethane Resin for Flexible Substrates

When developing a water-based coating for plastic, HPUA-7613 from Guangzhou Guanzhi is one polyurethane dispersion to evaluate. It is an aliphatic hydroxy acrylic modified polyurethane intended as a binder in two-component waterborne coatings. Product information states good adhesion to plastic, water resistance, high hardness, and wear resistance.

Product Overview

HPUA-7613 is designed for water-based 2K coating formulations. Guanzhi recommends using it with OS-9016 or OS-9018 hardeners. The product information also highlights pigment arrangement, especially in water-based 2K silver powder coatings, and chemical resistance.

What the Available Data Says

• Resin type: Aliphatic hydroxy acrylic modified polyurethane dispersion.
• Intended system: Binder for water-based two-component coatings.
• Plastic performance: Good adhesion to plastic is stated.
• Other listed properties: Good water resistance, high hardness, and good wear resistance.
• Recommended hardeners: OS-9016 or OS-9018.

Guanzhi names 3C digital products, automotive interiors, household appliances, and plastic toys as plastic-related application areas. These examples do not establish compatibility with every plastic type or coating formulation. The supplied information also does not include comparative test results or substrate-specific preparation guidance.

Evaluating Flexible Materials

The product-specific substrate evidence provided for HPUA-7613 is its stated adhesion to plastic. Although Guanzhi identifies textile, printing leather, ink, and adhesive among broader company application scenarios, the available product data does not confirm that HPUA-7613 is suitable for each of these materials.

Before selecting the resin, test it on the intended substrate using the proposed formulation and hardener. Trials should reflect the actual coating requirements and application conditions, since results may vary across materials and formulations.

Company and Supply Information

Guangzhou Guanzhi New Material Technology Co., Ltd. reports a quality management system certificate covering research and production of environmentally friendly, multipurpose water-based polyurethane coating materials and high-performance water-based coating additives. The company also lists coating-related cooperation cases with two global paint and coatings providers in China; the supplied information does not identify HPUA-7613 as part of those projects.

Guanzhi lists a minimum order quantity of 900 kg and an estimated delivery time of 7–10 days. Factory quality control, technical support, and free reference formulas are also noted. For product guidance, contact sophia@guanzhihg.com.

Frequently Asked Questions

Which product is listed for adhesion to plastic?

HPUA-7613 is the dispersion in the supplied product information for which good adhesion to plastic is stated.

Is HPUA-7613 confirmed for every flexible substrate?

No. Its listed plastic adhesion does not verify performance on textile, printing leather, ink, or adhesive. Test the resin on the specific material and in the intended formulation.

Which hardeners does Guanzhi recommend?

The product information identifies OS-9016 and OS-9018 as suitable hardeners for HPUA-7613.

Conclusion

HPUA-7613 may be worth evaluating for water-based two-component coatings where plastic adhesion and water resistance are important. Confirm suitability through formulation trials on the target substrate, including testing with the selected hardener. Learn more about Guangzhou Guanzhi New Material Technology Co., Ltd., established in 2014 and active in research, production, sales, and technical services. Its product range includes water-based resins, crosslinkers, additives, and bio-based special polyols, with R&D and application centers in Guangzhou and Shanghai. The company reports more than 50 invention patents.