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

TMG 635 Polyurethane Catalyst

TMG635isahigh-performancepolyurethanecatalystfromtheTMGseriesbyEvonik,designedforfast-curingflexiblefoamsandcoatings.Itenhancesreactivityselectivelywithoutover-acceleratinggelation,ensuringexcellentflow,celluniformity,anddimensionalstabilityinPUapplications.
  • tmg 635 polyurethane catalyst_2416ac00
  • tmg 635 polyurethane catalyst_2416ac00

Features Of TMG 635 Polyurethane Catalyst

  1. Highly selective tertiary amine catalyst optimized for polyol-isocyanate reaction kinetics.

  2. Low volatility and minimal odor, supporting safer handling and improved workplace air quality.

  3. Excellent compatibility with common polyether and polyester polyols across flexible and rigid PU systems.

  4. Enables balanced reactivity—promoting both gelation and blowing reactions without excessive foaming instability.

  5. Stable performance over extended storage periods when kept under recommended conditions (dry, cool, sealed).

Typical Applications Of TMG 635 Polyurethane Catalyst

  1. Flexible slabstock foam for mattresses and furniture upholstery.

  2. Rigid polyurethane insulation foams in appliance and construction panels.

  3. Integral skin (self-skinning) foams for automotive seating and dashboards.

  4. Reaction injection molding (RIM) systems requiring precise pot life control.

  5. Coating and adhesive formulations where delayed onset and smooth cure profile are critical.

Specifications Of TMG 635 Polyurethane Catalyst

Chemical TypeTertiary amine-based catalyst
Product FormLiquid
AppearanceClear, pale yellow liquid
Primary ApplicationsFlexible & rigid polyurethane foams, RIM, coatings
Key FeaturesBalanced gelling/blowing activity, low volatility, good hydrolytic stability
BenefitsImproved processing window, reduced VOC emissions, consistent foam cell structure
Storage ConditionsStore in original sealed container at 10–25°C, protect from moisture and direct sunlight
Shelf Life24 months from date of manufacture under proper storage


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