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EPOXY RESIN
For economy plus wide versatility in both fabrication techniques and end usage, phenolic resins are often the most attractive. epoxy resins have excellent electrical properties over a wide range of humidity conditions and thermal variations. For arc resistance, melamine resin is superior and offers excellent heat and flammability resistance.
Glass Fabric Base Laminates - Woven glass cloth can be combined with all of the common resin systems. epoxy resin is the most popular for improved electrical properties, followed by melamine for arc resistance and by phenolic for heat resistance.
Paper Base Laminates - Norplex's paper base laminates are combinations of phenolic, melamine and epoxy resin systems combined with kraft or cotton linter papers. At times, cover sheets of specialty papers, vulcanized fiber, glass fabric pre-pregs, rubber and other surface plies are added.
G-10 - NEMA GRADE G-10 (Glass fabric base LAMINATES)
Glass fabric with non-brominated epoxy resin system. Combines
excellent electrical characteristics with superior physical
properties. Electrical properties maintained in high humidity
conditions. Contains no bromine on the epoxy resin backbone.
Not flame resistant.
NP501 - NEMA GRADE FR-4 HIGH TEMPERATURE (Cotton fabric base laminates) Woven glass fabric with epoxy resin system. Engineered to provide improved properties over NEMA Grade FR-4 in applications
involving thermal stress, such as reflow and solder pallets.
NP511ES
Woven glass fabric with high temperature, static dissipative
epoxy resin. Excellent mechanical strength and chemical
resistance properties at elevated temperatures. Continuous
operating temperature is 175°C, with excursion temperatures
exceeding 250°C.
NP613 - NEMA GRADE XX (Paper Based Laminates)
A modified epoxy resin system combined with an electrical grade of
kraft paper developed for the oil filled transformer industry.
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