novolac epoxy NPPN-638S

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Product Description

NPPN-638S is a phenolic epoxy resin, featuring a thermally resistant backbone with benzene rings and multiple functional epoxy groups. It has a high bridging density and due to its structural characteristics, it allows for a wide range of processing conditions.

The NPPN-638S can be hardened with polyurethane, phenolic, polyester resins or different acid anhydrides as hardeners to produce high-performance circuit board substrates (prepreg) or composite materials. The produced substrates have high Tg values, excellent heat resistance and chemical resistance.