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

TMG 634 Polyurethane Catalyst

TMG634isapremiumpolyurethanecatalystfromtheTMGseriesbyAirProducts,designedforhigh-performancefoamandcoatingapplications.Itacceleratesurethanereactionwithexcellentflowcontrol,lowemissionprofile,andconsistentcellstructure,enablingefficientprocessingandenhancedfinalproductquality.
  • tmg 634 polyurethane catalyst_85d87e30
  • tmg 634 polyurethane catalyst_85d87e30

Features Of TMG 634 Polyurethane Catalyst

  1. Highly selective tertiary amine catalyst optimized for polyol-isocyanate reactions in flexible and semi-rigid PU foams.

  2. Excellent balance of creaming and gelling activity, enabling precise control over foam rise profile and cell structure.

  3. Low volatility and minimal odor, supporting improved workplace safety and reduced VOC emissions during processing.

  4. Good compatibility with common polyols, fillers, and flame retardants used in commercial PU formulations.

  5. Stable performance across a wide temperature range (15–40 °C), ensuring consistent reactivity in varying production environments.

Typical Applications Of TMG 634 Polyurethane Catalyst

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

  2. Semi-rigid automotive seating foams requiring controlled flow and dimensional stability.

  3. Integral skin foams for steering wheels, armrests, and instrument panels.

  4. Water-blown molded foams where low fogging and low emission properties are critical.

  5. Rebonded foam systems utilizing recycled PU scrap and aqueous binders.

Specifications Of TMG 634 Polyurethane Catalyst

Chemical TypeTertiary amine (N,N-dimethylcyclohexylamine derivative)
Product FormLiquid
AppearanceClear, pale yellow liquid
Primary ApplicationsFlexible & semi-rigid polyurethane foam systems
Key FeaturesLow-odor, low-volatility, balanced reactivity
BenefitsImproved foam uniformity, reduced post-cure shrinkage, enhanced worker safety
Density (25 °C)~0.89–0.91 g/cm³
Storage StabilityStable for ≥12 months at 15–25 °C in sealed containers


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