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

TMG 256 Polyurethane Catalyst

Air Products TMG 256 Polyurethane Catalyst is a tertiary amine catalyst in the TMG series, specifically formulated for flexible slabstock and molded polyurethane foam systems. It offers balanced reactivity, excellent flow properties, and low odor. Widely used to enhance cream time and rise profile while maintaining cell structure integrity. Compatible with conventional and bio-based polyols. Meets stringent VOC and regulatory requirements for industrial applications.
  • tmg 256 polyurethane catalyst_6409d975
  • tmg 256 polyurethane catalyst_6409d975

Features Of TMG 256 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 conventional polyether and polyester polyols.

  4. Enables balanced reactivity for both foam rise and gelation—reducing collapse and shrinkage risks.

  5. Non-corrosive to processing equipment and stable under standard storage conditions.

Typical Applications Of TMG 256 Polyurethane Catalyst

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

  2. Automotive seating and interior trim foams requiring consistent cell structure.

  3. High-resilience (HR) foam formulations demanding precise cream-to-gel timing control.

  4. Integral skin foams used in steering wheels, armrests, and dash components.

  5. Water-blown and low-VOC foam systems compliant with environmental regulations.

Specifications Of TMG 256 Polyurethane Catalyst

Chemical TypeTertiary amine
Product FormLiquid
AppearanceClear, pale yellow liquid
Density (25°C)0.92–0.94 g/cm³
Refractive Index (25°C)1.470–1.480
pH (10% aqueous solution)10.5–11.2
Primary ApplicationsFlexible polyurethane foam catalysis
Key FeaturesBalanced gelling/rising activity, low volatility, non-corrosive


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