Harnawa Insulations Private Limited

Woven glass fibre roving fabric made from heavy untwisted "E" glass yarn having resin compatible surface-dressing or size. Woven roving are often used in composite laminates with chopped strand mat, later being used to increase the bulk of the laminate. Rovings wet far more quikly than certain types of mat, pick up a lower percentage of resin (i.e. approximately 50% glass 50% resin), and have far better physical properties. A roving laminate is much stronger than laminate made from chopped strand mat and a thinner, lighter and less expensive laminate can often be made.

We offer a comprehensive range of E-Glass and C-Glass Fiberglass Yarns, designed for diverse applications in fireproofing and electrical insulation. Manufactured with precision and quality raw materials, our fiberglass yarns meet stringent industry standards, providing exceptional strength, flexibility, and durability. These yarns are widely regarded as fundamental binding elements for high-performance insulation systems. Available with wax (paraffin), silane, or starch binders for enhanced compatibility with various applications.

Fibreglass Varnished Fabrics are normally used for application where operating temperature is class 'B' (130 °C) or above. Fibreglass Varnished cloth and tapes can be used for wide variety or electrical applications where material with high tensile strength and flexibility is required. Composition: A low alkali content 'E' glass fabric heat cleaned and treated with coupling agent is impregnated with glyptal type varnishes. The glass fabric imparts good mechanical properties while varnish possesses high dielectric strength. Materials are available in straight cut and bias cut form.

Insulation:
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Type 1: Varnished glass fabric is applied helically with successive layers coated with synthetic varnish. Glass fabric is woven from "E" glass yarn with alkali content not more than 1%, A braid of glass fibre varnished with synthetic varnish is given externally.
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Type 2: Varnished glass fabric is applied helically with successive layers coated with silicone varnish. A braid of glass fibre varnished with silicone varnish is given externally.

Woven glass fibre roving fabric made from heavy untwisted "E" glass yarn having resin compatible surface-dressing or size. Woven roving are often used in composite laminates with chopped strand mat, later being used to increase the bulk of the laminate. Rovings wet far more quikly than certain types of mat, pick up a lower percentage of resin (i.e. approximately 50% glass 50% resin), and have far better physical properties. A roving laminate is much stronger than laminate made from chopped strand mat and a thinner, lighter and less expensive laminate can often be made