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

Eastman TMPD Glycol 2,2,4-Trimethyl-1,3-Pentanediol

Eastman TMPD Glycol is a high-purity, low-color 2,2,4-trimethyl-1,3-pentanediol from Eastman’s specialty glycol series—offering excellent hydrolytic stability, low volatility, and superior solvency for coatings, inks, and adhesives. Its branched aliphatic diol structure enables enhanced film flexibility, reduced viscosity, and improved compatibility with resins and polymers.
  • eastman tmpd glycol 2 2 4 trimethyl 1 3 pentanediol_c8a88be0
  • eastman tmpd glycol 2 2 4 trimethyl 1 3 pentanediol_c8a88be0

Features Of Eastman TMPD Glycol 2,2,4-Trimethyl-1,3-Pentanediol

  1. Low volatility and high boiling point for improved process safety and reduced VOC emissions.

  2. Excellent solvency for cellulose esters, acrylics, and alkyd resins without excessive water sensitivity.

  3. Branched molecular structure provides steric hindrance, enhancing hydrolytic stability in coatings and adhesives.

  4. Low toxicity profile with favorable occupational exposure limits (OEL) supporting safer handling in industrial settings.

  5. High purity with minimal aldehyde content, ensuring compatibility in sensitive polymerization and crosslinking systems.

Typical Applications Of Eastman TMPD Glycol 2,2,4-Trimethyl-1,3-Pentanediol

  1. Coil coating formulations requiring balanced drying speed and film flexibility.

  2. Automotive refinish clearcoats where low haze and long pot life are critical.

  3. Industrial maintenance coatings exposed to humidity and thermal cycling.

  4. UV-curable hybrid systems as a reactive diluent and viscosity modifier.

  5. High-solids architectural coatings targeting reduced solvent demand and improved gloss retention.

Specifications Of Eastman TMPD Glycol 2,2,4-Trimethyl-1,3-Pentanediol

Chemical TypeDiol (branched aliphatic)
Product FormLiquid
AppearanceClear, colorless to pale yellow liquid
Primary ApplicationsCoatings, inks, adhesives, and specialty polymers
Key FeaturesLow volatility, hydrolytic stability, low water sensitivity
BenefitsImproved formulation stability, reduced VOC, enhanced film toughness
Molecular Weight144.2 g/mol
Boiling Point (760 mmHg)225–230 °C


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