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Epoxy Curing Agent

August 04, 2025

Category Connection: Liquid Epoxy Resin

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Tags:

#Epoxy Resin #Industrial Epoxy Resin #Epoxy Resin Coatings

Brief: Discover the Heat Resistant Phenolic Novolac Semi Solid Epoxy Resin NPPN-638S, a high-performance resin with superior heat resistance and chemical properties. Ideal for laminates, civil engineering, and composite materials, this resin offers exceptional durability and adhesion.

Related Product Features:

Heat resistant phenolic novolac semi-solid epoxy resin with superior elevated temperature performance.
Features an average of 3.6 epoxy groups per molecule for tightly cross-linked cured systems.
Excellent chemical resistance and adhesion compared to BPA-based resins.
Gardner color max 3.0 and epoxy equivalent weight of 170~190 g/eq.
Semi-solid physical state with solution viscosity of H~J at 25℃.
Main raw material is phenolic novolac epoxy resin (CAS No. 25036-25-3).
Widely used in laminates, civil engineering, filament winding, and composite materials.
Packaged in 220kg drums with a shelf life of at least 12 months in sealed containers.

Faqs:

What are the key applications of NPPN-638S epoxy resin?

NPPN-638S is ideal for laminates, civil engineering, filament winding, and composite materials due to its superior heat resistance and chemical properties.
How does NPPN-638S compare to BPA-based epoxy resins?

NPPN-638S features an average of 3.6 epoxy groups per molecule, offering tighter cross-linking, better heat resistance, and improved chemical resistance compared to BPA-based resins.
What are the storage and handling precautions for NPPN-638S?

Store in sealed containers at ambient temperature for up to 12 months. Handle with care as it may cause skin and eye irritation; wash skin with soap and water, and flush eyes for 15 minutes if contact occurs.