Polyurethane Catalyst QHA-H46 Product Data Sheet

Product Name: QHA-H46 | Chemical Composition: Composite Tertiary Amine Catalyst (Mainly N,N-Dimethylcyclohexylamine Derivatives) | CAS No.: Mixture (Based on Tertiary Amine Components)

Product Category: Composite Tertiary Amine Polyurethane Catalyst |  | Appearance: Colorless to pale yellow clear liquid

EC Number: 203-149-1 (Main Component) | UN Number: 2619 8/PG 2

1. Description

Polyurethane Catalyst QHA-H46 is a high-efficiency composite tertiary amine catalyst, formulated with N,N-dimethylcyclohexylamine derivatives as the core active components, supplemented by auxiliary catalytic ingredients to optimize performance. It is a colorless to pale yellow low-viscosity clear liquid with a mild amine odor, featuring excellent catalytic activity, balanced reaction control, and superior compatibility, specifically designed for polyurethane (PU) foam manufacturing and related industrial applications.

QHA-H46 exhibits balanced catalytic effects on both the gelation reaction (polyol-isocyanate crosslinking) and blowing reaction (isocyanate-water interaction) in PU systems, effectively regulating reaction kinetics to ensure stable foam rise, uniform cell structure, and reduced processing defects such as foam collapse, shrinkage, and surface pinholes. It has good compatibility with mainstream PU raw materials, including polyether polyols, polyester polyols, isocyanates, foaming agents, and other auxiliary additives. With its moderate activity and stable performance, QHA-H46 is widely used in various PU foam formulations, providing reliable processing performance and consistent product quality.

2. Specification

The table below lists the typical physical and chemical properties of Polyurethane Catalyst QHA-H46, complying with industrial quality standards and strict quality control requirements, ensuring consistent product performance across batches:

3. Application

Polyurethane Catalyst QHA-H46 is a versatile composite catalyst with broad applicability, mainly focused on polyurethane foam production, with core advantages in balanced catalytic performance and good processing adaptability:

• Rigid Polyurethane Foams: Widely used in insulation foam formulations such as building exterior insulation panels, on-site spray foam insulation, refrigeration equipment (refrigerators, freezers) insulation layers, refrigerated truck insulation, and insulation plates. It optimizes cell structure, enhances foam thermal insulation performance and mechanical strength, and improves processing efficiency.
• Flexible & Semi-Rigid PU Foams: Used as a main or auxiliary catalyst in molded flexible foams (automotive seats, furniture cushions, bedding) and semi-rigid foams, adjusting reaction kinetics to improve product flexibility, resilience, and dimensional stability, and reducing surface defects.
• Microcellular & Integral Skin Foams: Applied in microcellular foam (shoe soles, gaskets) and integral skin foam (automotive interior trim, handgrips) formulations, promoting fine cell structure and smooth surface finish, and ensuring uniform foam density.
• PU Adhesives & Sealants: Used in polyurethane adhesives and sealants, accelerating curing speed, enhancing bond strength, and improving the product’s resistance to water and chemicals.
• Other PU Products: Suitable for polyurethane packaging foams, sound insulation foams, and other products, providing stable catalytic performance and ensuring consistent product quality.
• It can be used alone as the main catalyst or blended with other amine catalysts (such as TEDA, DMCHA) to fine-tune reaction rates. The recommended dosage is 0.2–1.3% based on the weight of polyol in PU foam formulations, depending on the specific foam type, raw material system, and performance requirements.

4. Storage & Handling

Storage Conditions

• Store in sealed original containers (170kg/drum, 25kg/drum or 20L/drum) in a cool, dry, well-ventilated warehouse, away from direct sunlight, heat sources, open flames, and static electricity. The recommended storage temperature is 5–30°C; avoid prolonged exposure to high temperatures (above 40°C) to prevent volatilization and performance degradation.
• Keep the product isolated from strong acids, oxidizing agents, and moisture to prevent chemical reactions, performance degradation, or contamination. For long-term storage, containers can be filled with nitrogen to avoid oxidation.
• Storage areas must be equipped with spill containment facilities and emergency response materials (adsorption materials, neutralizers) to handle potential leaks, and comply with local chemical safety and environmental regulations. The product is classified as a flammable liquid, so fire prevention measures should be strictly implemented.

Shelf Life & Handling Precautions

• Unopened shelf life: 12 months under recommended storage conditions. Conduct performance testing prior to use if expired. Once opened, use the product within 3 months and reseal tightly after each use to prevent moisture absorption and volatilization.
• Wear appropriate personal protective equipment (PPE) during handling, including chemical-resistant gloves, safety goggles, a protective coat, and anti-static shoes. Operate in a well-ventilated area to avoid inhalation of vapors; use an air-purifying respirator for high-concentration operations.
• In case of accidental contact: Flush skin or eyes with plenty of clean water for at least 15 minutes; seek medical attention promptly if irritation persists. In case of leakage, contain the spill with adsorption materials (such as diatomaceous earth), neutralize if necessary, and dispose of waste in accordance with local hazardous waste regulations.
• Dispose of empty containers and waste liquid properly: clean empty containers thoroughly before disposal, and send waste liquid to a professional hazardous waste treatment agency to avoid environmental pollution. Do not pour directly into water bodies or sewers.

The information provided is based on current technical knowledge and practical application experience. Shijiazhuang Qihong  New Material Technology Co.,Ltd assumes no liability for losses caused by improper storage, handling, or application of the product. Users are recommended to conduct preliminary formulation tests to verify the product’s suitability for specific production processes and comply with all relevant safety regulations. Reference safety data sheet (SDS) for detailed hazard information.