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HYH251 General-Purpose Hardener (Accelerator-Free) HYH251 is an accelerator-free phenolic hardener developed for powder coating applications. It is especially suitable for functional powder coatings requiring balanced mechanical properties and superior chemical resistance, such as powder coatings for pipelines, valves and steel rebars. Customers shall add accelerators at different ratios according to required gel time and target performance during application.

HYH253M is a thermosetting novolac phenolic hardener with excellent compatibility with epoxy resins. HYH253M contains built-in accelerator and leveling agent. Powder coatings prepared together with bisphenol A epoxy resins feature fast curing speed. The cured films possess outstanding solvent resistance, chemical resistance and mechanical properties. The reaction between HYH253M and epoxy resin is an addition reaction. No volatile substances are released during powder curing, preventing pinholes and blisters. It is suitable for metal anti-corrosion powder coatings.

HYH300 General-Purpose Hardener (Accelerator-Free) HYH300 is an accelerator-free phenolic hardener developed for powder coating applications. It is especially suitable for functional powder coatings requiring balanced mechanical properties and superior chemical resistance, such as powder coatings for pipelines, valves and steel rebars. Customers shall add accelerators at different ratios according to required gel time and target performance during application.

HYH330 General-Purpose Hardener (Accelerator-Free) HYH330 is an accelerator-free phenolic hardener developed for powder coating applications. It is especially suitable for functional powder coatings requiring balanced mechanical properties and superior chemical resistance, such as powder coatings for pipelines, valves and steel rebars. Customers shall add accelerators at different ratios according to required gel time and target performance during application.

HYH381 General-Purpose Hardener (Accelerator-Free) HYH381 is an accelerator-free phenolic hardener developed for powder coating applications. It is especially suitable for functional powder coatings requiring balanced mechanical properties and superior chemical resistance, such as powder coatings for pipelines, valves and steel rebars. Customers shall add accelerators at different ratios according to required gel time and target performance during application.

HYH600 General-Purpose Hardener (Accelerator-Free) HYH600 is an accelerator-free phenolic hardener developed for powder coating applications. It is especially suitable for functional powder coatings requiring balanced mechanical properties and superior chemical resistance, such as powder coatings for pipelines, valves and steel rebars. Customers shall add accelerators at different ratios according to required gel time and target performance during application.

HYH300M General-Purpose Hardener (With Built-in Accelerator) HYH300M is a phenolic hardener with inherent accelerating function. It features accelerated curing reaction, excellent heat resistance, low water absorption and low linear expansion coefficient. It can be uniformly blended and extruded with epoxy resins, eliminating uneven melt mixing caused by separate addition of accelerators in formulations. It is mainly applied in heavy-duty anti-corrosion powder coatings and other fields with special performance requirements.

HYH300ML General-Purpose Hardener (With Built-in Accelerator) HYH300ML is a phenolic hardener with inherent accelerating function. It features accelerated curing reaction, excellent heat resistance, low water absorption and low linear expansion coefficient. It can be uniformly blended and extruded with epoxy resins, eliminating uneven melt mixing caused by separate addition of accelerators in formulations. It is mainly applied in heavy-duty anti-corrosion powder coatings and other fields with special performance requirements.

HYH381M General-Purpose Hardener (With Built-in Accelerator) HYH381M is a phenolic hardener with inherent accelerating function. It features accelerated curing reaction, excellent heat resistance, low water absorption and low linear expansion coefficient. It can be uniformly blended and extruded with epoxy resins, eliminating uneven melt mixing caused by separate addition of accelerators in formulations. It is mainly applied in heavy-duty anti-corrosion powder coatings and other fields with special performance requirements.

HYH381ML General-Purpose Hardener (With Built-in Accelerator) HYH381ML is a phenolic hardener with inherent accelerating function. It features accelerated curing reaction, excellent heat resistance, low water absorption and low linear expansion coefficient. It can be uniformly blended and extruded with epoxy resins, eliminating uneven melt mixing caused by separate addition of accelerators in formulations. It is mainly applied in heavy-duty anti-corrosion powder coatings and other fields with special performance requirements.

HYH251HV is a phenolic hardener developed for powder coating systems. It delivers outstanding mechanical properties and chemical resistance as well as exceptional adhesion, showing prominent performance on tinplate and galvanized steel substrates. It is specially designed for functional powder coatings with strict adhesion requirements, including zinc-rich powder coatings and anti-corrosion coatings applied on metal substrates with incomplete pretreatment.

HYH300A is a phenolic hardener with accelerating effect. It boasts superior anti-yellowing performance, outstanding heat resistance, low water absorption and low linear expansion coefficient, and is mainly used for heavy-duty anti-corrosion powder coatings and other applications with special requirements. It can be used alone based on target gel time, or blended with our HYH251 / HYH251HV / HYH300 at a 5:5 ratio to produce powder coatings with excellent anti-yellowing effect.