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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 both gelation and blowing reactions without excessive foaming instability.
Stable performance over extended storage periods when kept under recommended conditions (dry, cool, sealed).
Flexible slabstock foam for mattresses and furniture upholstery.
Rigid polyurethane insulation foams in appliance and construction panels.
Integral skin (self-skinning) foams for automotive seating and dashboards.
Reaction injection molding (RIM) systems requiring precise pot life control.
Coating and adhesive formulations where delayed onset and smooth cure profile are critical.
| Chemical Type | Tertiary amine-based catalyst |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Primary Applications | Flexible & rigid polyurethane foams, RIM, coatings |
| Key Features | Balanced gelling/blowing activity, low volatility, good hydrolytic stability |
| Benefits | Improved processing window, reduced VOC emissions, consistent foam cell structure |
| Storage Conditions | Store in original sealed container at 10–25°C, protect from moisture and direct sunlight |
| Shelf Life | 24 months from date of manufacture under proper storage |
Q1: What is the primary function of TMG 635 in polyurethane systems?
A: TMG 635 is a tertiary amine-based catalyst designed to promote the urethane reaction (isocyanate–polyol coupling), offering balanced reactivity and improved flow characteristics in flexible and semi-rigid foam formulations.
Q2: Is TMG 635 suitable for water-blown or low-emission polyurethane foams?
A: Yes — TMG 635 is commonly selected for water-blown flexible slabstock and molded foams where reduced volatile organic compound (VOC) emissions and minimized amine odor are desired, thanks to its relatively low volatility and favorable hydrolytic stability.
Q3: How does TMG 635 compare to traditional amine catalysts like DABCO 33LV or TEDA?
A: TMG 635 offers comparable gelling activity with enhanced compatibility in high-water or high-polyol systems, and typically exhibits lower vapor pressure and reduced tendency for surface defects such as shrinkage or poor cream time control in sensitive formulations.
Q4: What is the recommended handling and storage guidance for TMG 635?
A: Store in tightly sealed containers under dry, cool conditions (below 30 °C), away from strong oxidizing agents and moisture. Due to its amine nature, it should be handled using appropriate personal protective equipment (PPE), including chemical-resistant gloves and eye protection.
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E-mail: wangxingqiang@ericwchem.com
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