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Highly selective tertiary amine catalyst optimized for balanced reactivity in polyurethane foam systems.
Low volatility and minimal odor profile, supporting improved workplace safety and compliance with VOC regulations.
Excellent storage stability—remains effective for ≥12 months under recommended conditions (dry, cool, sealed container).
Compatible with a broad range of polyols, isocyanates, and co-catalysts including DABCO® and TEDA derivatives.
Enables fine-tuned control over cream time, rise profile, and gelation—ideal for high-resilience and slabstock foam formulations.
Flexible polyurethane slabstock foams for bedding and furniture.
High-resilience (HR) molded foams used in automotive seating and premium upholstery.
Integral skin foams for steering wheels, armrests, and dashboard components.
Water-blown and low-VOC foam systems requiring reduced emissions and odor.
Multi-component spray polyurethane foam (SPF) sealants and insulation systems.
| Chemical Type | Tertiary amine |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| Primary Applications | Flexible polyurethane foam catalysis |
| Key Features | Balanced gelling/foaming activity, low volatility, low odor |
| Recommended Dosage Range | 0.05–0.30 phr (parts per hundred polyol) |
| Storage Conditions | Store in original sealed container at 15–25°C, protect from moisture and direct sunlight |
| Shelf Life | 12 months from date of manufacture when stored properly |
Q1: What is the primary function of TMG 225 in polyurethane systems?
A: TMG 225 is a highly selective tertiary amine catalyst that primarily promotes the urethane reaction (isocyanate–polyol coupling), enabling efficient gelation and improved cell structure control in flexible and semi-rigid foams, as well as certain CASE applications.
Q2: Is TMG 225 compatible with moisture-sensitive or low-emission formulations?
A: Yes — TMG 225 exhibits low volatility and minimal odor compared to many conventional amine catalysts, making it suitable for formulations targeting reduced VOC emissions and improved workplace handling. It does not significantly accelerate the water–isocyanate side reaction, supporting better processing stability in humidity-variable environments.
Q3: How should TMG 225 be incorporated into a polyurethane formulation?
A: TMG 225 is typically added directly to the polyol blend at ambient temperature. It is fully miscible with common polyether and polyester polyols, and does not require pre-dissolution or special handling precautions beyond standard industrial chemical hygiene practices.
Q4: Can TMG 225 be used in combination with other catalysts?
A: Yes — TMG 225 is frequently used in synergy with delayed-action catalysts or metal-based systems (e.g., dibutyltin dilaurate) to fine-tune cream time, rise profile, and final cure development, particularly in complex molded or integral-skin applications.
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