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Ephchlorohydrin Novolac Epoxy Resin High Temperature 638 For Heat Resistance Coatings

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Ephchlorohydrin Novolac Epoxy Resin High Temperature 638 For Heat Resistance Coatings

Brand Name : HONREPOXY

Model Number : 638

Place of Origin : China

MOQ : 5tons

Price : USD4.1-4.9/kg

Supply Ability : 3000tons per month

Packaging Details : 220kg in iron drums

Main raw material : Ephchlorohydrin,phenol-formaldehyde

Application : Heat resistance adhesives, coatings, laminates, composites,PCB inks, potting and encapsulation

Color : colorless or light Yellow

Appearance : semi-solid

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Novolac Epoxy Resin 638 for heat resistance coatings

Novolac Epoxy Resin (638)

General description

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.

Characteristic:

• High viscosity

• High temperature resistance

• Chemical resistance

• Good adhesion strength

• High mechanical strength

Typical applications:

•Heat resistant adhesives

•Hear resistant coatings

•Laminates

•Composite

•PCB inks

•Potting and Encapsulation

Typical properties:

Property Value
Appearance Yellowish, Transparent, Semi-solid
Epoxy equivalent (g/mol) 174-180
Color (Gardner) ≤ 1
Chloride Content (ppm) ≤5
Hydrolyzable Content (ppm) ≤300
Volatile matter (ppm) ≤500
Viscosity ( cps,25°C) H-K

Storage:

Novolac Epoxy Resin (638) is supplied in bulk or in 220KG tight-head drums. The resin should be stored in dry place in its original closed packaging.

Shelf life is 12 months.


Product Tags:

Ephchlorohydrin Novolac Epoxy Resin

      

Novolac Epoxy Resin 638

      

638 High temperature Epoxy Resin

      
China Ephchlorohydrin Novolac Epoxy Resin High Temperature 638 For Heat Resistance Coatings factory

Ephchlorohydrin Novolac Epoxy Resin High Temperature 638 For Heat Resistance Coatings Images

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