Catalysts for PU paint are designed to accelerate and optimize the chemical reactions in polyurethane coating systems. These specialized PU catalysts reduce the energy of activation, enabling faster curing at lower temperatures while maintaining stability in the system. They are essential for producing high-quality polyurethane coatings with enhanced physical properties and environmental resistance.

Product Types & Advantages

General Purpose Catalysts

Organic Bismuth / Zinc Catalysts (BCAT and ZCAT series): Direct substitutes for imported catalysts, offering comparable performance without compatibility issues.

Eco-friendly Tin Catalysts (S02, WS8A, WP01A): Safe alternatives to traditional tin catalysts, providing similar performance while meeting environmental regulations.

Special Functional Catalysts

AUCAT Series (AUCAT-101, AUCAT-1301): Developed to address compatibility issues with polyester polyols, these catalysts produce resins with excellent transparency and gloss. They offer:

High compatibility with polyester polyols

◆ Improved transparency in oil-based, UV-curing, and water-based resins

Faster synthesis with stable viscosity

◆ Catalytic activity exceeding organic bismuth options

◆ Finished resins with superior clarity and color stability

Application-Specific Catalysts

Water-based Curing Material Catalyst (CUCAT-U2): Targets specific reactions to improve curing agent characteristics, including:

Stable low viscosity

◆ Enhanced functionality for better film properties

High transparency

◆ Increased NCO% for improved reactivity

Good water dispersibility

◆ TDI Trimer Curing Agent Catalyst (CUCAT-G5A): Reduces free TDI content to environmentally acceptable levels while offering:

High catalytic activity with reduced reaction time

◆ Stable storage properties

◆ Clear, transparent product

PU paint catalyst applications

Polyurethane Synthetic Resin

◆ Oil-based PU resin: AUCAT-101 and organic bismuth/zinc catalysts ensure good transparency and film properties.

◆ Water-based PUD: AUCAT series and zinc catalysts produce highly transparent dispersions.

◆ PU modified UV resin: AUCAT-101 is recommended for polyether-type resins.

◆ Moisture-curing PU resin: Organic bismuth and zinc catalysts provide reliable performance.

Curing Agents

◆ Water-based curing agents: CUCAT-U2 improves stability, functionality, and film properties.

◆ TDI trimer curing agents: CUCAT-G5A reduces free TDI content while maintaining activity.

Polyurethane Coatings

◆ Oil-based coatings: AUCAT series prevents hydrolysis and maintains curing performance.

◆ Water-based coatings: AUCAT catalysts solve compatibility and stability issues.

◆ 2K PU Coatings: Various AUCAT models offer tailored curing profiles.

◆ PU Baking Paints: Selected catalysts enhance cure speed and film properties.

Water-based Alkyd Coatings

◆ ALCAT Series: CS04, CS05, CS07A, and CS10A catalysts provide fast curing, good compatibility, and excellent water resistance.

Company Services

Yourun offers comprehensive support for your PU paint catalyst needs:

◆ Technical Support: Our experts assist with catalyst selection and application guidance.

◆ Custom Formulation: We develop specialized catalyst solutions for your unique requirements.

◆ Environmental Compliance: Our eco-friendly options meet international regulations.

◆ Cost-Effective Solutions: Flexible product choices to optimize your production costs.

◆ Application Testing: We provide guidance and support for implementing our catalysts in your specific processes.