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Technical Data Sheet
Eastman™ CHDM-D90


Applications
  • Automotive
  • Construction chemicals
  • General industrial coatings
  • Lighting
  • Paints & coatings
  • Process additives
  • Protective coatings
  • Wind energy
Key Attributes
  • Excellent corrosion resistance in fiberglass-reinforced plastics
  • Excellent hardness with some flexibility
  • Good heat resistance and electrical properties
  • High crystallinity
  • High glass transition temperature relative to linear aliphatic glycols
  • Highly reactive hydroxyl groups

Product Description

IUPAC: 1,4-cyclohexanedimethano

Eastman™ CHDM-D90 is a 90/10 weight percent solution of CHDM-D in water. It is a liquid at room temperature for easier handling. This symmetrical, high molecular weight cycloaliphatic glycol is used to make saturated and unsaturated polyester resins. It is commonly used as a glycol modifier for resins containing Eastman NPG™ glycol. The 10 weight percent water in CHDM-D90 is removed during heating of the resin reaction mixture.

Good chemical, stain, humidity, and corrosion resistance is achieved when using CHDM-D90 in polyester-melamine baking enamels for appliance, general metal, and automotive coatings. It delivers good hydrolytic stability to waterborne polyester resins. Durable polyester polyols for polyurethane coatings can be made for the industrial maintenance, transportation, automotive, and aerospace markets. It can also be used in unsaturated polyester resins for gel coats, sheet molding compounds, and injection moldable fiberglass-reinforced plastics. Eastman CHDM-D90 is a mixture of cis and trans isomers.

Contact us for more information, to request a sample, or to receive a copy of Eastman publication, Storage and Handling of 1,4-Cyclohexanedimethanol (CHDM).



Typical Properties

PropertyTypical Value, Units
General
Molecular Weight144.21
Empirical FormulaC8H16O2
Equivalent Weight 
     (calculated)72.1
Hydroxyl Number 
     (calculated, 100% solids)778
FormSlightly hazy liquid
Color 
     Pt-Co10 max. (molten)
Assay88.0-90.5 wt % min.
Water9.5-10.5 wt %
Boiling Point113 °C (235 °F)
Viscosity 
     @ 23°C915 cP
Density 
     @ 23°C1043 g/L (8.71 lb/gal)
Specific Gravity 
     @ 20°C/20°C0.95
Melting Pointa-30 to 40 °C

aCHDM-D90 is a CHDM-D/water mixture exhibiting multiple melting points across this range. This complexity makes melting and freezing point determinations difficult. Eastman suggests CHDM-D90 be handled at temperatures between +30°C to +40°C.



Comments
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.

6/27/2023 10:52:49 AM