MXC-33E: High-Efficiency Polyurethane Gel Catalyst
MXC-33E is a highly active, liquid tertiary amine catalyst universally recognized for its exceptional performance in polyurethane foam manufacturing. Manufactured and supplied by Hebei Mingxu Chemical Co., Ltd., this industry-standard gel catalyst consists of 33% Triethylenediamine (TEDA) dissolved in 67% Dipropylene Glycol (DPG). It is engineered to powerfully promote the urethane (polyol-isocyanate) reaction, ensuring rapid gelation and excellent foam structural integrity.
Product Identification
| Category | Detail |
| Chemical Name | 33% Triethylenediamine in 67% Dipropylene Glycol |
| CAS Number | 280-57-9 (TEDA) / 25265-71-8 (DPG) |
| Product Function | Strong Amine Gel Catalyst |
| Appearance | Light Yellow to Clear Liquid |
Typical Physical & Chemical Properties
We implement strict quality controls to guarantee precise active concentrations for consistent industrial production:
| Property | Typical Value | Unit |
| Purity (TEDA Content) | ≥ 33.0 | % |
| Solvent (DPG Content) | ≤ 67.0 | % |
| Water Content | ≤ 0.5 | % |
| Specific Gravity | 1.03 | @ 25°C, g/cm³ |
| Viscosity | 125 | @ 25°C, mPa·s |
| Flash Point (PMCC) | 110 |
Key Features & Advantages
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Powerful Gelation: Strongly drives the cross-linking reaction between isocyanates and polyols, significantly reducing demolding times and increasing production efficiency.
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Liquid Convenience: Unlike solid TEDA crystals, MXC-33E is provided in a stable liquid form, allowing for precise metering, easy pumping, and seamless blending into polyurethane systems.
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Excellent Compatibility: Highly soluble and compatible with a wide range of polyether and polyester polyols, as well as most standard polyurethane additives.
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Factory-Direct Consistency: Ensures reliable batch-to-batch stability for wholesale and large-scale manufacturing operations.
Suggested Applications
MXC-33E is a highly versatile fundamental catalyst utilized across nearly all polyurethane sectors:
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Microcellular Elastomers: Extremely effective in the production of high-quality shoe soles, providing the rapid curing required for complex molds.
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Semi-Rigid & Flexible Foams: Ideal for polyester-type foams, automotive seating, and molded foam applications requiring tight cellular structures.
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Rigid Polyurethane Foams: Acts as a vital co-catalyst in rigid insulation boards, spray foams, and sandwich panels.
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C.A.S.E. Applications: Broadly used in polyurethane coatings, adhesives, sealants, and elastomers to accelerate curing profiles.
Packaging & Storage Guidelines
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Standard Packaging: Available in 25kg net pails and 200kg net steel drums for secure bulk transportation.
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Storage Environment: Must be stored in a cool, dry, and well-ventilated warehouse.
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Handling: Keep containers tightly sealed to prevent moisture absorption, as the product is hygroscopic. Avoid direct sunlight and keep away from incompatible oxidizing agents.
