All You Want to Know About Fiber Glass

  • A reinforced plastic material composed of glass fibers embedded in a resin.

In other words

  • A textile fabric made from woven glass filaments.
  • Commonly known as glass-reinforced plastic (GRP), Glass-fiber reinforced plastic (GFRP)
Courtesy - 123rf


  • Fiber reinforced composite columns
  • Thermal insulation
  • Sheets
  • Fibre glass reinforced plastics.
  • Widely used for insulation of pipes, bends, valves.
  • Thermal insulation of cold storages, Containers
  • For panel insulation for all types of industrial equipment.
  • Traffic lights
  • Ship Hulls
  • Water pipes
  • Bath tubs
  • Helicopter rotor Blades
  • Pods, domes and architectural features where a light weight is necessary
  • Auto body parts
  • Reinforcement of asphalt pavement as a fabric or mesh between lifts.
  • Storage tanks
  • House Building
  • Piping


Material Specific Gravity Tensile Strength MPa (ksi) Compressive Strength MPa (ksi)
Polyester resin (Not reinforced) 1.28 55 (7.98) 140 (20.3)
Polyester and Chopped Strand Mat Laminate 30% E-glass 1.4 100 (14.5) 150 (21.8)
Polyester and Woven Rovings Laminate 45% E-glass 1.6 250 (36.3) 150 (21.8)
Polyester and Satin Weave Cloth Laminate 55% E-glass 1.7 300 (43.5) 250 (36.3)
Polyester and Continuous Rovings Laminate 70% E-glass 1.9 800 (116) 350 (50.8)
E-Glass Epoxy composite 1.99 1,770 (257)
S-Glass Epoxy composite 1.95 2,358 (342)
Also Read: Properties & Characteristics of Glass

Size & Thickness:

  • Thickness varies from 25 mm to 150 mm
  • Size – 854 X 2082 mm


  • Soft to touch and flexible in nature.
  • High tensile strength.
  • Proof against fire, vermin, water and acids.
  • Thermal and sound insulation of air crafts.
  • Increase impact strength of concrete and restrict shrinkage creeps.

Manufacturing Process:

  • Consists of minute glass rods and each glass rod represents the parent material in all respects.
  • Made from silica glass in a special manner, by forcing the molten glass through fine apertures under high pressure, when thread like mass is obtained.
  • Prepared either in the form of continuous strands just like silk or in the staple form just like wool.
Also Read: All You Want to Know About Float Glass






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