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Highly selective tertiary amine catalyst optimized for polyol-isocyanate reaction kinetics.
Low volatility and minimal odor, supporting safer handling and improved workplace air quality.
Excellent compatibility with common polyether and polyester polyols across flexible and rigid PU systems.
Enables balanced reactivity—promoting gelling without excessive blowing—ideal for dimensionally stable foams.
Stable in storage at ambient conditions; non-corrosive to standard processing equipment.
Flexible slabstock foam for mattresses and furniture upholstery.
Rigid polyurethane insulation foams in appliance and construction panels.
Integral skin and microcellular foams for automotive interior parts.
Coating and adhesive formulations requiring controlled pot life and rapid cure development.
Water-blown low-emission foam systems compliant with indoor air quality standards.
| Chemical Type | Tertiary amine (N,N-dimethylcyclohexylamine derivative) |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Density (25°C) | 0.84–0.86 g/cm³ |
| Refractive Index (20°C) | 1.445–1.455 |
| pH (1% aqueous solution) | 10.5–11.2 |
| Primary Applications | Flexible & rigid polyurethane foam, coatings, adhesives |
| Key Features | Low-VOC, non-halogenated, REACH-compliant |
Q1: What is the primary function of TMG 319 in polyurethane systems?
A: TMG 319 is a highly selective tertiary amine catalyst that promotes the urethane reaction (isocyanate–polyol coupling) with minimal acceleration of the urea-forming side reaction, enabling improved processing control and enhanced foam or elastomer morphology.
Q2: Is TMG 319 suitable for moisture-cure or one-component PU systems?
A: Yes — TMG 319 is compatible with one-component moisture-curing polyurethane formulations, where it helps balance gel time and surface cure without excessive sensitivity to ambient humidity.
Q3: How does TMG 319 compare to traditional amine catalysts like DABCO 33-LV in terms of odor and volatility?
A: TMG 319 exhibits significantly lower volatility and reduced amine odor compared to many low-molecular-weight aliphatic amines, making it advantageous for applications requiring improved worker safety and lower VOC emissions during processing.
Q4: Can TMG 319 be used in combination with other catalysts?
A: Yes — TMG 319 is commonly blended with gelling catalysts (e.g., certain metal carboxylates) or blowing catalysts to fine-tune reactivity profiles, particularly in flexible slabstock or CASE applications requiring precise rise/gel balance.
Q5: What are typical handling and storage recommendations for TMG 319?
A: Store in tightly sealed containers under inert atmosphere (e.g., nitrogen), away from moisture, strong oxidizing agents, and elevated temperatures. Handle using appropriate PPE, including chemical-resistant gloves and ventilation, due to its amine character and potential skin/eye irritation.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
