CHDM D90

(90/10) Mixture of Cycloaliphatic Glycol & Water for Saturated & Unsaturated Polyester Resins (1,4-Cyclohexanedimethanol)
Product Overview
Eastman™ CHDM-D90 is a liquid mixture of cycloaliphatic glycol and water (90/10). CHDM-D90 is used primarily in the manufacture of saturated & unsaturated polyester resins. The 10 weight percent water in CHDM-D90 is removed during heating of the resin reaction process.

CHDM-D90 provides good chemical, stain, humidty & corrosion resistance in polyester-melamine baked enamels.
CHDM-D90 can also be used as a glycol modifier with Eastman NPG™ for resins.

IUPAC: 1,4 - cyclohexanedimethanol
Product Specifications
Appearance: Slightly hazy liquid
Viscosity @ 23°C: 915 cP
Flash point: 167°C (333°F)
Boiling point: 284-288°C (543-550°F)
Melting point: 41-61°C (106-142°F)
Specific gravity @ 20°C/20°C: 1.02
CAS: 105-08-9 (90%)
CAS: 7732-18-5 (10%)
Molecular weight: 144.21
Empirical Formula: C8H16O2
Features & Benefits
Hardness and Flexibility balance
High crystallinity
Excellent humidity and corrosion resistance
Good heat resistance
Highly reactive hydroxyl groups
Rapid esterification and cure
High Glass Transition Temperature
Problems Solved
Inferior Fiberglass-Plastic Corrosion & Thermal Resistance
Difficult to Handle, High Viscosity Cycloaliphatic Glycols
Poor Polyester Resin Stain, Detergent & Impact Resistance

Applications
Used in many applications such as automotive coatings, construction chemicals, paints, industrial coatings, protective coatings, and process additives.