Synocat® DMDEE

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Synocat® DMDEE

One-Component Water-Curing,2,2-dimorpholinodiethylether,6425-39-4

Synocat® DMDEE is suitable for water curing systems and is a strong foaming catalyst. Due to the steric hindrance of amino groups, the storage period of NCO components can be prolonged. It is suitable for the catalytic reaction of NCO and water in systems such as TDI, MDI, and IPDI; Sinocat® DMDEE is mainly used In one-component rigid polyurethane foam system, it can also be used for polyether and polyester polyurethane soft foam, semi-rigid foam, CASE material, etc. The addition amount accounts for 0.3-0.55% of the polyether/ester component.

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SYNOCAT® DMDEE

(Strong Blowing Catalyst for One-Component Water-Curing Polyurethane Systems)

  • Cas No.: 6425-39-4

  • Chemical Name: 2,2-Dimorpholinodiethylether;Bis(2-morpholinoethyl) ether

  • Synonym:DMDEE; Niax Catalyst DMDEE;4,4′-(oxydiethane-2,1-diyl)dimorpholine

  • Molecular weight:244.33

  • Molecular structure:

    2,2-二吗啉基二乙基醚 结构式

General Information :

SYNOCAT® DMDEE is a tertiary amine catalyst specifically designed for water-curing polyurethane systems. It acts as a strong blowing catalyst, effectively promoting the reaction between NCO groups and water in formulations based on TDI, MDI, and IPDI.


Due to the steric hindrance of its amino groups, SYNOCAT® DMDEE offers excellent storage stability for NCO-containing components, extending the pot life and shelf life of one-component moisture-cure formulations. It provides balanced catalytic activity while maintaining system stability, making it an ideal choice for demanding polyurethane applications.

Specification :
ItemStandard
AppearanceColorless transparent liquid
Chromaticity≤ 2
Water Content≤ 0.1%
Purity (GC)≥ 99.0%


Applications :

SYNOCAT® DMDEE is widely used in various polyurethane systems, with its primary application in one-component rigid polyurethane foams. It is also suitable for:

  • Polyether & Polyester Flexible Foams

  • Semi-Rigid Foams

  • CASE Materials (Coatings, Adhesives, Sealants, Elastomers)


Recommended Dosage:
0.3 – 0.55% based on the polyether/polyester polyol component.

Packaging :
  • 210 kg/drum

  • 1050 kg/IBC

  • Custom packaging available upon request

Storage & Handling :
  • Store in a dry, clean warehouse with adequate ventilation

  • Keep container tightly sealed to prevent moisture absorption

  • Protect from light and heat – avoid direct sunlight and high temperatures

  • During transportation, protect from leakage, rain, and insolation

  • Recommended shelf life: 12 months in original sealed container under recommended storage conditions


The information contained in this document is based on our current knowledge and is provided for general reference only. It does not constitute a specification or warranty. Users should conduct their own tests to determine suitability for specific applications.


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  • Customized development

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