PMA /PGMEA CAS 108-65-6 Propylene Glycol Monomethyl Ether Acetate, is a slow-evaporating, colorless, hydrophilic glycol ether acetate widely recognized as one of the most versatile and effective solvents in modern coatings, inks, cleaners, and electronics applications. It offers an outstanding balance of solvency power, moderate evaporation rate, low viscosity, and excellent coupling ability, making it the preferred choice for high-performance formulations.
PMA is fully miscible with most organic solvents and has limited water solubility (~19.8 g/100 mL at 20 °C), which provides unique formulation flexibility.

 

Technical Specifications

ITEMS SPECIFICATIONS
Appearance Colorless transparent liquid
PMA Content ≥99.5%
2-Methoxy-1-propanol acetate Content ≤0.4%
Density at 20℃ 0.965-0.975 g/cm³
Distillation Range 143-149 °C
Water ≤0.05%
Acid Number ≤200 ppm
Color ≤10 Hazen

 

Packaging and Storage

  • Net weight 200kgs galvanized iron drum, 16MT/FCL with pallets.
  • Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

 

Key Properties & Advantages

  • Excellent solvency for polar and non-polar resins (acrylics, polyesters, epoxies, polyurethanes, vinyls, etc.).
  • Mild odor and low toxicity compared to traditional glycol ethers.
  • Balanced evaporation rate (slower than MEK, acetone, or ethyl acetate) providing superior flow, leveling, and surface appearance.
  • High electrical resistance and low water solubility – ideal for semiconductor and TFT-LCD photoresist formulations.
  • Fully miscible with most organic solvents and water-miscible.

 

Primary Applications

Electronics & Semiconductor:
Photoresist thinners, edge bead removers, LCD/TFT cleaning solvents, wafer cleaning

Coatings & Paints:
Automotive OEM and refinish, industrial maintenance, wood coatings, coil coatings, marine paints

Inks:
Flexographic, gravure, screen-printing inks, especially UV-curable and water-based systems

Cleaners:
Precision cleaning, hard-surface cleaners, electronics degreasers

Adhesives & Sealants:
Solvent for polyurethane and epoxy systems

Chemical Intermediate:
Synthesis of other esters and specialty chemicals

 

Frequently Asked Questions (FAQs)

What is the difference between PMA and PM (Propylene Glycol Methyl Ether)?
PMA (CAS 108-65-6) is the acetate ester of PM (CAS 107-98-2). PMA evaporates significantly slower and has stronger solvency than PM, making it the preferred solvent for photoresist thinners and high-solid coatings.

Is PMA compatible with waterborne coatings?
Yes. PMA is partially water-miscible and acts as a coupling agent and coalescent in waterborne acrylic and polyurethane dispersions.

Is PMA the same as PGMEA?
Yes. PGMEA and PMA refer to the identical chemical (108-65-6). The semiconductor industry universally uses the abbreviation PGMEA.

Is PMA flammable?
PMA is classified as a Class 3 flammable liquid (flash point 45 °C). Proper handling, grounding, and storage according to local regulations are required.

 

Where can I buy high-quality PMA /PGMEA CAS 108-65-6?

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