MXC-41

Clear liquid MXC-41 trimerization amine catalyst in a glass beaker for rigid PU and PIR foams
Clear liquid MXC-41 trimerization amine catalyst in a glass beaker for rigid PU and PIR foams
Name Triazine Catalyst
Formula C18H42N6
CAS No. 15875-13-5
Molecular weight 342.57 g/mol
Appearance Colorless clear liquid

MXC-41 Technical Data Sheet

Purity Min.98%
Amine value (mgKOH/g) 485~505
Water Content Max.0.5%
Specific Gravity 0.92~0.95
Viscosity at 25℃ 26~33mp.s
Package 180kgs net steel drum, 920kgs net IBC drum
Storage Life Keep in a cool dry place.
Shelf life One Year

MXC-41 Chemical Characteristics

Advanced Trimerization Catalyst for High-Performance PU & PIR Systems

Clear liquid MXC-41 trimerization amine catalyst in a glass beaker for rigid PU and PIR foams
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

Chemical structure of MXC-41 (CAS 15875-13-5), a high-activity trimerization amine catalyst for rigid PU and PIR foams
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:

  • Hexahydro-s-triazine Ring: Featuring a specialized six-membered triazine core, this catalyst powerfully promotes the trimerization reaction of isocyanates.

  • 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:

  • 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.

  • 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.

  • 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:

  • Microcellular Elastomer Curing: It significantly improves the curing profile and physical properties of microcellular elastomers, ensuring high durability and rapid demolding.

  • 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:

  • 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.

  • 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.

  • 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.

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