Advanced Trimerization Catalyst for High-Performance PU & PIR Systems
MXC-41 is a specialized liquid amine catalyst that strongly promotes the trimerization reaction in rigid foams.
MXC-41 (1,3,5-Tris[3-(dimethylamino)propyl]hexahydro-1,3,5-triazine) is a highly specialized tertiary amine catalyst. Renowned for its potent trimerization capabilities, it is the industry standard for manufacturing highly flame-resistant polyisocyanurate (PIR) rigid foams, while also providing exceptional versatility in advanced elastomeric and high-resilience systems
Molecular Architecture & Trimerization Core
Molecular structure of Ming Xu Chem’s MXC-41 (CAS 15875-13-5), the industry-standard catalyst for PIR formulations.
The fundamental molecular design of MXC-41 is the key to unlocking superior thermal stability in rigid foam applications:
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Hexahydro-s-triazine Ring: Featuring a specialized six-membered triazine core, this catalyst powerfully promotes the trimerization reaction of isocyanates.
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Thermally Stable Isocyanurate Formation: By driving the creation of robust isocyanurate rings, it fundamentally enhances the inherent fire resistance, thermal stability, and mechanical strength of the finished insulation materials.
PIR Insulation & Advanced Rigid Foam Performance
For manufacturers of high-density insulation panels and spray foams, MXC-41 delivers critical structural and safety advantages:
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Exceptional Fire Resistance: Its ability to generate strong polyisocyanurate (PIR) networks ensures your rigid foam products meet increasingly stringent global flammability and fire safety standards.
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Optimized for Water-Blown Systems: It exhibits outstanding performance in all-water or co-blown rigid formulations, offering a highly active yet well-balanced catalytic profile that prevents shrinkage and maintains a smooth reaction.
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Superior Dimensional Stability: It facilitates a uniform, fine cell structure that directly translates to enhanced compressive strength and dimensional stability in thick insulating boards.
Versatility in Microcellular & High-Resilience Systems
Beyond rigid insulation, MXC-41 is highly valued as a versatile co-catalyst across specialty polyurethane sectors:
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Microcellular Elastomer Curing: It significantly improves the curing profile and physical properties of microcellular elastomers, ensuring high durability and rapid demolding.
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HR Foam Optimization: In High-Resilience (HR) molded seating and slabstock foams, it acts synergistically with other catalysts to achieve optimal cross-linking and a superior open-cell structure for maximum comfort.
Process Efficiency & Operational Stability
We maintain strict quality control parameters to guarantee precision dosing and formulation reliability in your automated factory:
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Robust Catalytic Activity: A high amine value ranging from 485 to 505 mgKOH/g ensures powerful reactivity even at very low dosage levels, effectively reducing your overall formulation costs.
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Optimal Liquid Dynamics: As a clear liquid with an exceptionally low viscosity (26–33 mPa·s at 25°C), it guarantees effortless pumping, seamless mixing, and perfect machine metering.
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Guaranteed High Purity: A minimum purity of 98% and strictly controlled water content (max 0.5%) eliminates the risk of unwanted side reactions, protecting your complex polyol premixes from premature degradation.
