Electrical insulation paper always refers to a kind of material that is used for various electrical equipment such as cables, wires, coils of insulation. As a matter of fact, there are some types of insulation paper, like Nomex paper(especially Nomex 410 the most famous from Nomex family), Formex GK, Fish paper, and so forth. In addition to featuring good insulation properties and mechanical strength, each of them has its own characteristics.
Nomex 410
Dupont Nomex 410 is a unique aramid enhanced cellulose material, and composed of high quality electrical grade cellulose pulp. Among the Dupont Nomex family, Nomex 410 is a type of high-density product as well as high inherent dielectric strength, mechanical toughness, flexibility and resilience. It has various ranges of thicknesses ranging from 0.05 mm (2 mil) to 0.76 mm (30 mil), with specific gravities ranging from 0.7 to 1.2. Featuring high temperature resistance and excellent dielectrical strength, Nomex 410 can be applied to most of electrical industry insulation, like transformer insulation, large power, medium voltage and high voltage industry insulation, motors insulation, battery insulation, power switch insulation, etc,.
Formex GK
ITW Formex GK flame retardant materials provide superior electrical insulation and barrier materials in industrial and electronic equipment. The insulating material is available in rolls and sheets and can be laminated with a wide range of different materials to meet the flammability and dielectric to a variety of applications, such as pressure sensitive adhesive for attachment, and aluminum foil for EMI shielding application. No other flame retardant and electrical insulating material can match the flexibility and performance of FormexTM for cost-effective fabricated parts. FormexTM has successfully replaced a variety of electrical papers, thermoplastic materials, and injected molded parts.
Fish Paper:
Made of vulcanized fiber, adhesive fish paper is also a type of electrical insulation. It’s very ease for forming and punching, and it’s usually laminated with adhesive and die cut as customer requests for some special application. Fish paper has strong features of dielectric properties, high mechanical strength, heat resistance and excellent sealing performance, which is widely used in electrical insulation application like Transformer, Motor, Battery, Computers, Printing equipment, household, etc.
Besides of these, there still are other electrical insulation papers, like Tufquin, Kraft paper, Crepe paper, etc,.
