EPALLOY® 8250
For an epoxidized phenol novolac with an average functionality of 2.65, EPALLOY 8250 exhibits a very low room temperature viscosity. Close process control produces a resin significantly lower in viscosity than other commercially available epoxy novolacs of similar functionality. EPALLOY 8250 combines low hydrolyzable chlorides with good reactivity. It is non-crystallizing and compatible with all standard curatives and most epoxy resin systems and solvents. Because of its low viscosity, EPALLOY 8250 is an excellent resin for formulating 100% solids coatings and trowelable flooring. Those formulations will cure at room temperature and provide chemical resistance to concentrated acids and aggressive solvents. 8250 is also the preferred resin for use in electronic encapsulation, laminating and film adhesives.
| Typical Properties | Values |
|---|---|
| EEW, g/eq | 165-178 |
| Viscosity, cps | 18,000-28,000 @ 25°C |
| Color, Max | 3 (Gardner) |
| Fn | 2.6 |
| Hydrolyzable Chloride, Max % | 0.10 |
| Residual Epichlorohydrin, max ppm | 10 |
| Flash Point,°C (°F) | >250 (482) |
| Weight per Gallon, @25°C lbs. | 10 +/-0.1 |
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TDS
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| Application Group | Application | Description |
|---|---|---|
| Coatings | Industrial Girth Weld Pipe Coatings | Increases the temperature resistance as compared to LER. |
| Coatings | Industrial Tank Linings and Secondary Containment | Used for chemical and solvent resistance. |
| Coatings | Industrial Chemical Resistant Flooring | Lower viscosity resin used to provide better chemical and solvent resistance. |
| Adhesives | Automotive Structural Adhesives | High temperature bonding in Structural Adhesives. |
| Adhesives | Construction Adhesives & Sealants | Low viscosity resin in Construction Adhesives. |
| Composites | General Composites | High strength resin in General Composites. |
| Adhesives | Automotive Injection Molded Structural Parts | Epoxy novalac resin providing higher Tg |
| Coatings | Industrial Coatings | Excellent chemical resistance in Industrial Coatings. |
| Adhesives | Automotive Injection Molded Structural Parts | Epoxy novalac resin providing higher Tg |