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High Purity Epoxy Hardener Chemistry , Colorless Curing Agent For Epoxy Resin

Categories Epoxy Curing Agents
Brand Name: HONINGLITE
Model Number: PF8211
Place of Origin: CHINA
MOQ: 1000KGS
Price: Negotiation
Payment Terms: T/T, L/C, D/P
Supply Ability: 5000TONS PRT MONTH
Packaging Details: 25KGS BAG
Appearance: Colorless Transparent Pellets
Package: 25kg bag
Composition: Phenol-formaldehyde novolac
Curing Temperature: 150-180°C
Features1: High Purity for electronic grade
Features2: Low Viscosity
Application: Moulding Compound
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High Purity Epoxy Hardener Chemistry , Colorless Curing Agent For Epoxy Resin

Phenolic Novolac Epoxy Curing Agent in Low Viscosity for Moulding Compound

Product description


Phenolic Novolac resin is produced by condensing phenol with an insufficient amount of formaldehyde to complete the reaction in the presence of an acid catalyst. This produces a thermoplastic resin.


Phenolic Novolac resins are also used as curing agents or hardeners for epoxy resins in applications such as molding materials, laminates, coatings and adhesives. The phenolic novolac resins used are non-heat reactive materials by themselves, but have phenolic-OH groups that react with epoxy groups. Since the curing mechanism does not produce by-products, thick sections may be obtained without voids and stresses and with low shrinkage.


Application


Moulding Compound,Adhesives & sealants, Epoxy hardeners and additives, High-temperature applications, Protective coatings


Specification:


PropertiesValue
Curing time @150°C100-160s
Flow Distance@125°Cmin120mm
Free-phenolmax.0.1%
Cone & plate viscosity0.3P
Conductivity,μS/cmmax.3
Sodium content, AAmax.5ppm
Chloridion,AAmax.5ppm
Hydroxyl equivalent weight,g/eq103-109
Softening point,°C67-72
Karl Fischer water contentmax.0.5%

Packing&Storage


the package is paper-plastics bag in 25KGS each one
The storage life of this product is several months in a cool and dry place in original closed bags


Quality High Purity Epoxy Hardener Chemistry , Colorless Curing Agent For Epoxy Resin for sale
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