Fiber Glass - An Inorganic Insulation

In summing up the characteristics of fiber glass those which make it valuable for electrical insulation are: 1. Noninflammable and highly heat resistant. The operable temperature is limited only by the impregnant used, and there is a very definite temperature range between the operable temperature of organic fabrics and that of heat-resistant impregnants where glass is unique. 2. Exceptionally high tensile strength. 3. Nonhygroscopic. 4. Resists attack by moisture, acids, oils, and corrosive vapors. 5. Good thermal conductivity. 6. Excellent dielectric strength when impregnated. 7. High insulation resistance.