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Pentamethyldiethylenetriamine PMDETA Catalyst China Suppliers and Factory

Pentamethyldiethylenetriamine PMDETA Catalyst China Suppliers and Factory
High purity Pentamethyldiethylenetriamine PMDETA CAS 3030-47-5 from leading China factory suppliers. A high-activity tertiary amine catalyst for PU rigid and soft foams, offering 98% content and superior foaming efficiency.


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Pentamethyldiethylenetriamine (PMDETA) is a high-activity tertiary amine catalyst specifically engineered for polyurethane (PU) reactions. Renowned for its exceptional ability to catalyze the foaming reaction, PMDETA serves as a critical agent in balancing the overall interaction between foaming and gelation. This versatility makes it an indispensable component in the production of various polyurethane rigid foams, including high-performance polyisocyanurate (PIR) plate rigid foams.

Beyond rigid applications, PMDETA exhibits outstanding performance in polyether polyurethane soft foams and molding foams, where it enhances toughness and bearing capacity. Whether used as a primary catalyst or as an auxiliary in combination with other catalysts like DMCHA, PMDETA optimizes fluidity and increases production volumes, ensuring a streamlined manufacturing process and superior structural integrity of the final foam product.

Detailed Parameters

Product NamePentamethyldiethylenetriamine (PMDETA) Chemical NatureTertiary Amine Catalyst
Primary FunctionFoaming Catalyst Application RangeRigid & Soft Polyurethane Foams
Rigid Foam Dosage0 - 2.0 phr (per 100 parts polyol) Soft Foam Dosage0.1 - 0.5 phr (per 100 parts polyether)
Key SynergistDMCHA (Dimethylcyclohexylamine) Special VariantQuaternary Ammonium Salt (Delayed)
Main BenefitEnhanced Fluidity & Volume Industry CategoryOrganic Chemical Raw Materials

Key Advantages

High Reactivity

Provides rapid catalysis for foaming reactions, significantly reducing cycle times in industrial production.

Optimized Fluidity

Strong foaming effects improve the flow of the mixture, enhancing the filling of complex molds.

Structural Toughness

Specifically increases the bearing capacity and toughness of soft foam products for durable use.

Versatile Integration

Can be utilized as a standalone catalyst or shared with other amines to fine-tune reaction speeds.

Precision Control

Allows for precise balancing of the foaming and gel reactions to prevent structural defects.

Delayed Action Option

Quaternary salt variants offer extended foaming time, ideal for complex box-type molding processes.

Product Gallery

Pentamethyldiethylenetriamine PMDETA Catalyst China Suppliers and Factory

Management Platforms

Raw Material Sourcing

Strict selection of organic chemical precursors to ensure catalyst purity.

Production Control

Advanced synthesis monitoring to maintain consistent batch reactivity.

Quality Assurance

Rigorous testing of foaming speed and toughness parameters for every lot.

Logistics Management

Specialized handling for reactive chemicals to ensure safe global delivery.

Inventory Optimization

Strategic stockpiling of key polyurethane catalysts for rapid order fulfillment.

Technical Support

Expert guidance on dosage adjustments and catalyst synergy formulas.

Investment Return Comparison

Performance MetricStandard CatalystPMDETA SolutionImprovement
Production VolumeBaselineIncreasedHigh Efficiency
Foam FluidityModerateSuperiorBetter Filling
Curing TimeStandardAcceleratedFaster Turnaround
Material ToughnessBasicEnhancedHigher Durability
Process StabilityVariableConsistentLower Defect Rate

Frequently Asked Questions

Q: What is the primary role of PMDETA in polyurethane production?

PMDETA acts as a highly reactive catalyst that primarily promotes the foaming reaction while balancing it with the gel reaction to ensure a uniform foam structure.

Q: Can PMDETA be used in both rigid and soft foams?

Yes, it is widely used in rigid foams (including PIR plates) and is also highly effective in polyether polyurethane soft foams and molding foams.

Q: What is the recommended dosage for soft foam applications?

For soft foam products, a dosage of 0.1 to 0.5 phr per 100 phr of polyether is generally recommended for optimal results.

Q: How does the quaternary ammonium salt of PMDETA differ from the standard version?

The quaternary ammonium salt acts as a delayed catalyst, prolonging the foaming time, which is ideal for complex shapes and box-type molding.

Q: Does increasing the dosage of the delayed catalyst affect whitening time?

No, the whitening time is not significantly affected by dosage changes, but increasing the dosage can shorten the rising and curing times.

Q: Which other catalysts are commonly paired with PMDETA?

PMDETA is frequently shared with catalysts such as DMCHA to optimize the overall chemical balance and foaming efficiency.

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