Your Reliable Curing Agents Manufacturers
We provide a range of curing agents—including TGIC, HAA, and epoxy types—specifically formulated to ensure stable crosslinking in powder-coating systems. They are critical for achieving the required performance in high-durability architectural coatings, appliance finishes, general industrial uses, and protective films.
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PCOTEC Core Advantages
Stable Crosslinking
Wide Cure Window
Enhanced Durability
Consistent Film Quality
System Flexibility
Sustainability
Main Products
Polyester TGIC
Curing Agents
Stable Crosslinking
Polyester TGIC works as a crosslinking agent for pure polyester powder coatings, with dosage adjusted according to polyester resin acid value. This gives formulators a clearer technical basis when balancing curing reaction, film hardness and coating durability. For powder coating factories, stable crosslinking helps reduce failed trials, batch variation and repeated formula correction.
Low Volatile
The volatile content is controlled at ≤0.5%, which is important for powder coating production where surface quality and curing stability matter. Lower volatile content helps reduce curing defects caused by gas release, especially when buyers need smoother coating film and better surface consistency. For B2B customers, this can lower rework pressure and improve finished coating reliability.
1、White Powder Form
Polyester TGIC is supplied as white granules or powder, making it suitable for dry blending, extrusion and powder coating formulation handling. This material form supports cleaner dosing and easier workshop storage compared with liquid additives. For production teams, stable feeding helps improve batch preparation and formulation control.
2、Controlled Epoxy Value
The product grades include TK-902 and TK-906, with epoxy equivalent indicators shown as ≤110 and 105. Epoxy equivalent is a key reference when formulators calculate reaction balance with polyester resin. Clear grade data helps buyers reduce uncertainty before pilot testing and lowers the risk of curing deviation in production.
3、Curing Temperature Fit
The melting range is 95–125°C, and viscosity at 120±1°C is shown as ≤100 mPa·s. These indicators help coating engineers judge how the curing agent behaves during extrusion, dispersion and curing. Proper melting and flow behavior support more stable film formation after curing.
HAA
Curing Agents
HAA are tetra-functional β-hydroxyalkylamide (HAA) compounds with excellent mechanical and weather resistance properties. They crosslink with carboxylated polyester or acrylic resins to produce non-toxic, skin-friendly, and environmentally friendly outdoor weather-resistant powder coatings, offering a safer alternative to TGIC.
Our advantage
Proven Material Expertise
Certified Quality & Traceability
Technical Customization & Application Support
Sustainable Chemistry Commitment
Global Supply & Reliable Service
Key Applications
Silicone Resin is a high-performance polymer designed for powder coatings requiring exceptional thermal endurance, oxidation resistance, and long-term stability.
Polyester resin is the core film-forming binder used in modern thermosetting powder coatings. It provides the structural backbone of the coating film, determining essential properties such as weatherability, hardness, mechanical strength, chemical resistance, and long-term durability.
Epoxy resin is a high-performance thermosetting polymer widely used in metal coatings, protective finishes, electrical insulation, and corrosion-resistant systems.
Curing agents are essential reactive components used in thermosetting powder coatings. They chemically crosslink with polyester or epoxy resins to create a solid, durable, three-dimensional coating network.
FAQ Use & Operation
How Do Curing Agents Influence The Flow, Leveling, And Final Appearance Of Powder Coatings?
Curing agents determine the crosslinking speed and melt viscosity during the curing stage. If the reactivity is too fast, the coating may gel prematurely, causing orange peel or poor leveling. If too slow, the film may sag or show surface defects. We provide curing agents with balanced reaction kinetics to match your resin system and achieve smooth, uniform appearance.
Can You Help Tailor The Curing Ratio for My Production Line?
Absolutely. We provide recommended stoichiometric ratios, reaction-kinetics support, and resin–curing-agent matching to ensure stable processing at your target line speed and oven temperature.
How Do Curing Agents Affect Yellowing Resistance And Long-Term Durability?
Curing-agent structure directly influences thermal stability and UV performance. We design and select curing agents with optimized crosslink architecture to minimize yellowing and improve outdoor durability.
Are Your Curing Agents Suitable for Both Standard And Low-Temperature Curing Systems?
Yes. We offer curing agents with different activation energies, allowing formulations to cure at conventional 180–200°C or energy-saving 140–160°C depending on application needs.
What Should I Do If My Powder Coating Has Incomplete Cure Or under-Baking Issues?
Our team can evaluate curing-agent reactivity, resin compatibility, cure-window design, and oven parameters to optimize the formulation and ensure full crosslinking.
How Do You Ensure Consistent Reactivity Of Your Curing Agents?
We control purity, particle size, and reaction-endpoint parameters during synthesis, and test each batch for reactivity index to ensure predictable curing behavior in TGIC and HAA systems.