FRP [ FIBREGLASS REINFORCED PLASTIC ]

The Composite material Fibreglass reinforced plastic is termed in short as FRP. Glass Fibre Reinforced Plastic (GFRP or GRP) and Reinforced Thermoset Plastic (RTP) are the other names used to refer this composite material consisting glass fibre and thermoset plastic resin.

FRP composite uses glass fibres and thermoset resin, which is available in a wide range. Unlike thermo plastics, thermoset plastics have very strong cross linked molecular structure, which maks it superior on account of flexural, tensile and weathering resistance.
    HAND LAY – UP

    As the name implies, the process of manufacture is by hand laying in which glass fibre is impregnated with thermoset resin, layer by layer, on a contact mold. This process is labor intensive. But this process is proving good especially for developing proto parts with minimum tooling cost. This process is holding good for moulding large parts.
      VARTM [ VACCUM ASSISTED RESIN TRANSFER MOLDING ]

      Vaccum Assisted Resin Transfer Molding is closed molding process, in which a matching mold cavity is filled glass and injected with resin. The resin flow is further assisted by applying vaccum inside of the mold cavity. The component is allowed to cure inside of the mold and then released.

        PULTRUSION

        A bunch of glass rovings is wetted in a thermoset resin bath and pulled through a heated metal die block cavity. The resin and fibre bonds under pressure and heat, inside of the die block, takes shape of the die cavity and comes out as solid. This is a continuous process of pulling and any constant cross section can be pulled.

        Very High tensible strength, very high di-electric strength are the features of pultruded sections.