Description
Product Description
Product Name: Epoxy Resin 638
Quality Standard: Tech grade
Description: Epoxy resin 638 is a semi-solid reaction product of epi chlorohydrin 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
The physical and chemical properties Test Item | Specification |
Appearance | Yellowish, Transparent, Semi-solid |
Color ,G | 1max |
Volatile Matter(ppm) | 500max |
Epoxy Equivalent,g/eq | 174-180 |
Chlo ride Content (ppm) | 5max |
Hydrolyzable Content (ppm) | ≤300 |
Viscosity(cps,25°C) | H-K |
Characteristics:
• 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 packagingStored in a cool and dry place with ventilation and can be sealed for 12 months.Package:220kg or 240kg in iron drum.Detailed Photos
Certifications
Our Advantages
Why choose us?
1.Samples---Free samples available for testing
2.Service---We keep tracking shipment of goods and follow up customer's feedback
3.Our advantages---we offer you factory price since we have own factory and raw material
welcome to contact us!