DMCD (Dimethyl Cyclohexanedicarboxylate)
Excellent weathering, flexibility and thermal stability in gel coats.
Eastman™ DMCD is a cycloaliphatic diester with low melting capabilities for synthesizing polyesters, polyamides, alkyds, and plasticizers. Similar performance properties to CHDA, except the reaction with glycols is a transesterification where methanol rather than water evolves from the reaction.
Appearance: Partially crystallized liquid
Viscosity @ 20°C: 8 cP
Flash point: 132°C (270°F)
Boiling point @ 100 mm Hg: 176°C (349°F)
Vapor pressure @ 170.8°C: 50 mm Hg
Specific gravity @ 35°C/4°C: 1.102
Features & Benefits
Solid form is easy to melt
Lower resin solution viscosity
Better resin hydrolytic stability
Better coating flexibility
Chemical and corrosion resistance
Poor Hydrolytic Stability in Polyester Resins
Inferior Coating Hardness & Flexibility Balance
Difficult to Use, High Viscosity Aromatic Acids
Used to formulate waterborne polyester resins for automotive, industrial maintenance, and general metal applications. Can also be used to make polyester polyols for polyurethane coatings.
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