When we buy FRP grille, we can judge from four aspects. Xiaobian reminds us here that we should consider the distinguishing factors comprehensively. A raw material for production. The main raw materials for the production of FRP grilles: resin, glass fiber wire (referred to as glass fiber), filling powder. 1. Resin. High-quality glass fiber reinforced plastic grille selection of high-quality resin: unsaturated phthalic resin 196, colorless transparent. Low viscosity, low heat release, low shrinkage, high speed curing, high speed compatibility, gloss brightness. The FRP grille produced is smooth and smooth, with good gloss, high strength and certain toughness. If the use of inferior resin will be completely the opposite of inferior resin turbidity, high viscosity, high heat release, high shrinkage, curing relatively slow, compatibility is poor, the production of FRP grille with multiple pores, easy to break, poor strength toughness. 2, glass fiber (referred to as glass fiber). In the FRP grille can enhance the toughness of the grille is the FRP fiber wire. High quality fiberglass fiber wire such as alkaline-free fiberglass fiber wire strength is higher than steel wire has a certain toughness, chemical stability, good weather resistance, almost no water absorption and fire does not burn, his high strength can also be used as tire cord. 1220244038 specification FRP grille FRP fiber wire is laid in accordance with 8-9 layers, so the strength of the product is guaranteed. Some manufacturers use fiberglass fiber wire is high-alkali wire as non-alkali wire, high-alkali wire strength is low, water resistance and alkaline resistance is poor. 3, filling powder. The filling material of FRP grille is aluminum powder, high-quality filling powder is fine and white, with flame retardant, completely integrated with resin, and the produced board is beautiful in color, transparency, good toughness. On the contrary, the inferior filling powder such as calcium powder is rough and dim, water absorption is easy to expand, is not flame retardant, and the produced board has no gloss, which is relatively brittle and toughness. The production process of FRP grille is a semi-machine semi-artificial production mode, the quality of production process personnel, proficiency, production process requirements (such as the number of glass fiber layers, the proportion of filling materials) will have a greater impact on the quality of FRP grille, so please try to choose a long history, formal, production of large enterprises. The appearance of high-quality FRP grille products has no obvious cracks, fewer pores, bright and pure color, good transparency, with a certain toughness strength, good surface finish, long service life; The appearance of the inferior FRP grille products has cracks, more pores, and the color is not pure enough gloss. Its service life is also shorter. Practice is the only standard time to test truth and the fairest judgment. FRP grille in the actual use of the process will also expose his real strength, high-quality FRP grille after a few years of color slightly dim, the whole board intact, no obvious damage, poor quality FRP grille can not withstand the test of practice, after a few years of use there will be corrosion fracture porosity and other obvious damage, the board is not so flat, The color degradation is serious, the overall aging, the general FRP grille is to be used for 20 years, but after two years, the inferior FRP grille will appear the phenomenon of overall aging, so it will bring huge losses.