The quality of fiberglass grating is mainly determined by its raw materials and manufacturing process. Here are some key factors for judging the quality of fiberglass grating:
Quality of resin:
High quality fiberglass grilles are made of high-quality resins, such as unsaturated ortho benzene resin 196. This resin is colorless, transparent, low viscosity, low heat release, low shrinkage, and has fast curing speed, good compatibility, and high glossiness.
The fiberglass grating produced using high-quality resin has a flat and smooth surface, good glossiness, high strength, and a certain degree of toughness.
On the contrary, fiberglass grilles made of inferior resin may be turbid, have high viscosity, high heat release, high shrinkage, slow curing speed, and poor compatibility. This type of grille has many pores, is prone to cracking, has poor strength, and poor toughness.
Quality of fiberglass fiber:
Fiberglass fiber is a key material for enhancing the toughness of grilles. High quality fiberglass fibers, such as alkali free fiberglass fibers, have higher strength than steel wires, have certain toughness, good chemical stability, strong weather resistance, almost no water absorption, and do not burn when exposed to fire.
High quality fiberglass fibers are usually laid in 8-9 layers to ensure the strength of the product.
Some manufacturers may use high alkali silk to impersonate non alkali silk. The strength of high alkali wire is relatively low, and its water and alkali resistance are poor. The use of this material in grilles will have significant quality defects.
Manufacturing process:
The quality of the manufacturing process can also affect the quality of the fiberglass grating. High quality manufacturing processes can ensure the flatness and strength of the grille, reducing the occurrence of pores and cracks.
Attention should be paid to checking whether the number of layers and arrangement of fibers in the grid are neat, and whether there are obvious bubbles or cracks.
In summary, judging the quality of fiberglass grating requires comprehensive consideration of multiple aspects such as resin quality, fiberglass fiber quality, and manufacturing process. When purchasing, it is recommended that consumers choose manufacturers with good reputation and guaranteed quality to ensure that the purchased fiberglass grating has excellent performance and a long service life.