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FRP grating quality selection A. Identification of raw materials. FRP grating raw material used for the resin, fiberglass wire filler calcium in a 1: 1: 1 ratio configuration is made of high quality fiberglass grille of high quality resins: Unsaturated phthalic resin 196, colorless, transparent . Low viscosity, low exotherm, low shrinkage, curing speed, high-speed compatibility, gloss brightness. Produced glass steel grille, smooth, gloss, strength and a certain toughness. If the use of inferior resin will be completely opposite of inferior resin stale, high viscosity, high heat, shrinkage, curing is relatively slow, compatibility is poor, producing more pore glass steel grille, easy to break, the intensity difference good toughness. In FRP grating can enhance grid toughness is fiberglass filaments. Quality fiberglass filaments such as E-type fiberglass yarn strength than steel wire has a certain toughness, chemical stability, weather resistance, almost non-absorbent fire does not burn, he can also be used as a high strength tire cords. Hua County Stone Company fiberglass filaments are laid in accordance with 8-9 layers, so the product Yasumasa intensity. The fiberglass filaments, some manufacturers use a high-wire act as alkali base wire, low high alkaline wire strength, poor water and alkali resistance. FRP grating filler is calcium or aluminum, high-quality filler silty delicate white, flame retardant, fully integrated with the resin, produced by the board beautiful color, large transparency and good toughness. Conversely, poor filling silty rough bleak, no flame, produced by the board no gloss, no more brittle toughness. B. refined contrast. FRP grating quality appearance without obvious cracks, holes less, pure bright colors, transparency, and with a certain toughness big strength, good surface finish and long service life; and the poor quality of glass fiber reinforced plastic grille appearance of cracks, large pores, impurities gloss color is not enough. Its life is shorter. C. Practice is the sole criterion for testing truth, time is the most fair judge. FRP gratings in the actual use of the process will expose his real strength, quality after years of use fiberglass grille color slightly dim, the entire board intact, there is no obvious damage, poor quality fiberglass grille by not live practice test will be used for several years after significant corrosion cracking holes and other damage, the board is not so smooth, the color degradation is serious, the overall aging of the general FRP grating is to use two years, but after two years of poor quality The FRP grid will be the overall aging, and therefore will bring huge losses.