D.E.R. 331
Liquid Epoxy Resin
D.E.R.™ 331™ Liquid Epoxy Resin is a liquid reaction product of epichlorohydrin and bisphenol A.
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| Property(1) | Value | Method |
| Epoxide Equivalent Weight (g/eq) | 182 – 192 | ASTM D-1652 |
| Epoxide Percentage (%) | 22.4 – 23.6 | ASTM D-1652 |
| Epoxide Group Content (mmol/kg) | 5200 – 5500 | ASTM D-1652 |
| Color (Platinum Cobalt) | 75 Max. | ASTM D-1209 |
| Viscosity @ 25°C (mPa•s) | 11000 – 14000 | ASTM D-445 |
| Hydrolyzable Chloride Content (ppm) | 500 Max. | ASTM D-1726 |
| Water Content (ppm) | 700 Max. | ASTM E-203 |
| Density @ 25°C (g/ml) | 1.16 | ASTM D-4052 |
| Epichlorohydrin Content (ppm) | 5 Max. | DowM 101321 |
| Shelf Life (Months) | 24 |
(1) Typical properties, not to be construed as specifications.
Introduction
D.E.R. 331 Epoxy Resin is the most widely used general purpose liquid epoxy resin. It is recognized as the standard from which many variations have been developed.
A wide variety of curing agents is available to cure liquid epoxy resins at ambient conditions. The most frequently used are aliphatic polyamines, polyamides, amidoamines, cycloaliphatic amines and modified versions of these curing agents. Curing may also be done at an elevated temperature to improve selected properties such as chemical resistance and glass transition temperature. If anhydride or catalytic curing agents are employed, elevated temperature cures are necessary and long post-cures are required to develop full end properties.
Typical Applications
This product is suitable for use in applications such as:
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Automotive
● Casting and Tooling
●
Civil Engineering
● Composites
● Automotive Coatings
● Can and Coil Coatings
● Marine and Protective Coatings
● Photocure Industrial Coatings
● Potting and Encapsulation
We cooperate with multiple well-known domestic suppliers
Our products have passed various industry certifications
