China GRP Grating | FRP Grating | FRP Molded Grating


Feb. 07, 2018

  • Light-weight:  its specific gravity is about 1.8, its weight is only 1/4 of steel material, and 2/3 of aluminum material.

  • High strength: its strength is tenfold of RPVC, the raw intensity is much more stronger than aluminum material.

  • Corrosion resistance: polyester type is a kind of  non-metallic material, it is resistant to rust, not moldy, staleproof, and no need to be painted. It is able to bear many kinds of corrosion of air and liquid. It is service-free. Therefore, some traditional grating will not corrode or get rust in some chemical mediators, it is not need to be check and maintain.

  • Fatigue resistance: frp grating has slightly elasticity, this make us feel comfortable when working for a long time on it. As a working platform,  it can help to reduce feeling of fatigue on leg and back, increase the comfort degree so that working effect is also improved.

  • Convenient to install: frp grating make the weight of components reduced much, thus it help to reduce the weight of structural support. Not need to use lifting equipment  while installing. It is economy and convenient.

  • Safety: it has characteristics of smolder and insulation. When frp grating is using, it will not produce spark when crashed each other. It is suit for some inflammable and explosive environment, whats more, some grating with non-skidsurface can help for fall prevention.

  • Good comprehensive economic efficiency: compared with common carbon steel, composite cost of frp grating is low, even though the initial investment is higher than common steel, because of it has long service life. Can be used for about 20 years and do not need to maintain. Its composite economic results  is much better than carbon steel.


Selection of materials

To produce a high quality FRP grating, we choose resin, fiberglass fiber and filler calcium powder as its material, and collocate the materials with the ratio of 1:1:1. high quality FRP grating also need a high quality resin, Unsaturated adjacent benzene resin 196 owns many advantages, such as colorless and transparent, low viscous, exothermic low, low shrink, quick-curing, high-speed compatibility, High gloss, and so on. The FRP grating produced by high quality resin has characteristics of flat and smooth, good gloss, great intensity and resilient in some extent. However, FRP grating produced by inferior resin is completely opposite, it should be turbid, high viscosity, high exothermic, high shrink, relative curing and its consistency is poor. Therefore, FRP grating produced by inferior resin has many air hole and it is easy to fracture. Its intensity and tenacity is very poor.

Comparison of finished product

High quality FRP grating product do not have sharp crack, it has fewer stomata. The color of product id bright and unadulterated. Its tenacity and intensity is good enough, which has a long service life. But the poor quality frp grating has bad degree of finish , can not maintain a long service life.

Proves with practice

Practice is the only criterion for testing truth, and time is also the most fair referee. FRP grating will exhibit his strength and luck when it is used. After be used for several years, its color may become slight, but the whole cover will be unwounded and there is no obvious damage on it. The poor quality FRP grating is very likely to suffer from some problems such as corrosion rupture occurs, plate is not smooth after using it for a long time. The color is also serious degraded.  Generically, FRP products are always keep in service for about 20 years, but poor quality FRP grating will appear the aging phenomenon in two years. Therefore, it will cause an  unimaginable loss for customers.

  The reason that cause the surface of frp grating unfairness

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