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Product Details:
Payment & Shipping Terms:
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| Color: | Yellowish, Transparent | Materials: | Novolac |
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| Type: | Modified | Appearance: | Liquid |
| Shelf Life: | 12 Months | Feature: | High Viscosity |
| High Light: | Yellowish Liquid Epoxy Resin,Semi-Solid Liquid Epoxy Resin,Semi-Solid Novolac Epoxy Resin |
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Yellowish transparent semi-solid Novolac Epoxy Resin HWR-638 with high mechanical strength
| Product Name: | Epoxy Resin 638 |
| Quality Standard: | Tech grade |
| Description: |
Epoxy resin 638 is a semi-solid reaction product of epichlorohydrin and phenol-formaldehyde novolac. It has advantageous characteristics of good adhesion strength, excellent heat and chemical resistance because of its multi-functional groups in one molecule fully cross-linked. Therefore, it has excellent physical properties in addition to the basic reactivity of general Epoxy Resin
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The physical and chemical properties
| Test Item | Specification |
| Appearance |
Yellowish, Transparent, Semi-solid
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Epoxy equivalent (g/mol)
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174-180
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Color (Gardner)
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≤1
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Chloride Content (ppm)
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≤5
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Hydrolyzable Content (ppm)
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≤300
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Volatile matter (ppm)
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≤500
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| Viscosity(cps,25°C) |
H-K
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Characteristic:
• High viscosity
• High temperature resistance
• Chemical resistance
• Good adhesion strength
• High mechanical strength
Typical applications:
• Heat resistant adhesives
• Heat resistant Coatings
• Laminates
• Composite
• PCB inks
• Potting and Encapsulation
Storage and packaging
Stored in a cool and dry place with ventilation and can be sealed for 12 months.
Package:220kg in iron drum.
Contact Person: cherry
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