Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik TEGOAMIN 33 Catalyst

Evonik TEGOAMIN 33 Catalyst is a high-performance tertiary amine catalyst from Evonik’s TEGOAMIN series, specifically engineered for polyurethane flexible foam production. It delivers exceptional reactivity, balanced gelling/foaming control, and low odor—ensuring efficient processing and superior foam cell structure with reduced VOC emissions.
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Features Of Evonik TEGOAMIN 33 Catalyst

  1. Highly efficient tertiary amine catalyst specifically designed for polyurethane flexible foam production.

  2. Offers excellent balance of reactivity and processing window, enabling precise control over cream time and rise profile.

  3. Low volatility and low odor profile, supporting improved workplace safety and compliance with stringent VOC regulations.

  4. Good compatibility with common polyol and isocyanate systems, minimizing formulation adjustments.

  5. Stable performance across varying ambient temperatures and humidity conditions.

Typical Applications Of Evonik TEGOAMIN 33 Catalyst

  1. Flexible slabstock polyurethane foam for bedding and upholstered furniture.

  2. High-resilience (HR) foam manufacturing requiring consistent cell structure and comfort properties.

  3. Automotive seating foams where processing reliability and emission control are critical.

  4. Commercial carpet underlay foams demanding uniform density and dimensional stability.

  5. Industrial cushioning applications requiring reproducible cure kinetics and low fogging potential.

Specifications Of Evonik TEGOAMIN 33 Catalyst

Chemical TypeTertiary amine catalyst
Product FormLiquid
AppearanceClear, pale yellow liquid
Primary ApplicationsFlexible polyurethane foam catalysis
Key FeaturesLow odor, low volatility, balanced gelling/blowing activity
BenefitsImproved process control, reduced emissions, enhanced foam consistency
Storage ConditionsStore in original container at 10–30 °C, protect from moisture and direct sunlight
Shelf Life24 months from date of manufacture when stored properly


Evonik TEGOAMIN 33 Catalyst – Frequently Asked Questions (FAQ)

Q1: What is the primary function of TEGOAMIN 33 in polyurethane systems?

A: TEGOAMIN 33 is a highly active tertiary amine catalyst specifically designed to promote the urethane reaction (isocyanate–polyol coupling), enabling efficient gelation and improved processing control in flexible and rigid PU foams, coatings, and adhesives.


Q2: How does TEGOAMIN 33 compare to other amine catalysts in terms of odor and volatility?

A: TEGOAMIN 33 exhibits significantly lower volatility and reduced amine odor compared to traditional low-molecular-weight catalysts such as triethylamine or DABCO® 33-LV, making it suitable for applications where worker exposure and post-foaming emissions are key considerations.


Q3: Is TEGOAMIN 33 compatible with water-blown and MDI-based formulations?

A: Yes — TEGOAMIN 33 demonstrates good compatibility in both water-blown and solvent-free systems, including those based on aromatic isocyanates like MDI, and supports balanced reactivity between gelling and blowing reactions without excessive foam collapse or shrinkage.


Q4: What is the typical dosage range for TEGOAMIN 33 in standard PU foam formulations?

A: Dosage is formulation-dependent, but TEGOAMIN 33 is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to the polyol component — and often functions effectively in combination with other catalysts to fine-tune cure profile.


Q5: Can TEGOAMIN 33 be used in moisture-curing one-component PU sealants?

A: While primarily developed for two-component PU systems, TEGOAMIN 33 may be considered in certain one-component, moisture-curing formulations to enhance early-stage surface cure; however, its use requires careful evaluation of shelf life, pot life, and final film properties due to its strong catalytic activity.



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