Click for PDF
Technical Data Sheet
Eastman™ n-Propyl Propionate

  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Commerical printing inks
  • General industrial coatings
  • Marine
  • Wood coatings
Key Attributes
  • Good solvent activity
  • High electrical resistance
  • Low MIR value
  • Low surface tension
  • Low water solubility
  • Medium evaporation rate
  • Mild odor
  • Non-HAP
  • Non-SARA
  • Predicted to be readily biodegradable*
  • REACH compliant
  • Urethane grade

Product Description
Eastman™ n-Propyl Propionate is a non-HAP, medium evaporating, urethane grade solvent that provides good activity for most coating resins. Its good activity yields efficient resin viscosity reduction that enables the development of lower VOC coatings. Eastman n-propyl propionate linear structure allows fast diffusion through coatings and printing inks films. It has lower odor than solvents of similar volatility.

Many resins are letdown in a solvent thinning tank to make handling, storing, and shipping easier. Eastman™ n-Propyl Propionate is useful as a letdown solvent because of its low volatility, good solvent activity, and urethane grade quality. Since this product is not a HAP, it is a good choice when formulating solvent blend replacements for toluene and xylene in coating applications such as high-solids thermoset enamels. Its high electrical resistivity is beneficial in optimizing transfer efficiency in coatings applied via electrostatic spray equipment.

*Modeled using The Estimation Programs Interface (EPI) Suite™ (EPA), BIOWIN v4.10 module

Typical Properties

PropertyTypical Value, Units
Assay99.5 wt % min.
Autoignition Temperature434.9 °C
Boiling Point 
     @ 760 mm Hg118.8-124 °C (245.8-255.2 °F)
     Pt-Co10 max.
Dilution Ratio 
     VMP Naphtha
Electrical Resistance>20
Empirical FormulaC6H12O2
Evaporation Rate 
     (ether = 1)1.2
     (n-butyl acetate = 1)1.2
Flash Point 
     Setaflash Closed Cup22 °C (71.6 °F)
Freezing Point-76 °C (-104.8 °F)
Hansen Solubility Parameters 
Molecular Weight116.18
Refractive Index 
     @ 20°C1.392
     in Water, @ 20°C
     Water in, @ 20°C
Specific Gravity 
     @ 20°C/20°C0.88
Surface Tension 
     @ 20°C24.7 dynes/cm
Vapor DensityNot Available
Vapor Pressure 
     @ 20°C10 mm Hg
     @ 55°C8.6 kPa
     @ 25°C, 8% CAB-381-0.523 cP·s
     @ 25°C, 8% RS 1/2-s NC31 cP·s
     @ 20°C0.88 kg/L (7.34 lb/gal)

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

10/13/2023 12:58:54 PM