(90/10) Mixture of Cycloaliphatic Glycol & Water for Saturated & Unsaturated Polyester Resins (1,4-Cyclohexanedimethanol)
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
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
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
Inferior Fiberglass-Plastic Corrosion & Thermal Resistance
Difficult to Handle, High Viscosity Cycloaliphatic Glycols
Poor Polyester Resin Stain, Detergent & Impact Resistance
Used in many applications such as automotive coatings, construction chemicals, paints, industrial coatings, protective coatings, and process additives.
More than half of powder coating processes utilize a polyester resin in the binder system. Eastman™ provides high-quality polyester resin intermediates that deliver cost effective production and targeted surface finish performance. Browse their solutions portfolio and learn how and why to select their resin intermediate products.
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