How to judge the quality of FRP Roof Sheet?
In recent years, FRP corrugated sheets have been widely used in environmental protection, energy-saving buildings, and factory workshop roofs and walls. It has the characteristics of continuous molding, infinite expansion, high lighting, high strength, anti-aging, flame retardant, smooth surface, customized colors, quick maintenance and replacement, simple installation, and environmental protection, but do you know how to judge it quality?
FRP roofing sheet are a fiber glass reinforced polyester composite material that is corrosion resistant and durable. The use of fiberglass roofing sheet provides a lot of convenience for our lives. However, many people don't know it very well. The following is china frp roofing sheet manufacturers to show you how to identify the quality of frp roof sheet.
- Look at the appearance: Glass fiber and air bubbles are unavoidable for FRP roof sheet, but according to the production equipment, process, and raw materials, the number of white silk and air bubbles can be greatly reduced. Whether the color is soft and uniform reflects the quality of the color paste added and the quality of the mixing equipment. Whether the surface is smooth and the edge is straight reflects the advanced degree of the equipment and the operating level of the workers.
- Hand feeling: Strength is an important indicator to measure the quality of fiberglass roof panels. The higher the strength, the better the curing degree. Tear the film by hand to see if the film is firm. Inferior film or ordinary corona film will be uncovered. Fiberglass roof panels suuplied by china frp roof sheet suppliers could provide 10 years warranty certificate.
- Listen to the sound: Due to the high degree of curing and high strength of frp corrugated sheet, it will make a crisp sound when you tap the plate with your hands. On the contrary, if the sound made when the plate is knocked is dull, the strength is poor.
- Odor: Due to the low degree of curing of inferior fiberglass roof panels materials, the uncured unsaturated resin will exist for a long time. When the film on the surface is torn, there will be a strong pungent odor, which lasts for a long time. Uncured resin accelerates plate aging and yellowing
Yuyi tech. is over 15 years china fiberglass roof panels factories, we have a large number of professional and technical personnel invest more than hundreds of thousands to upgrade equipment every year to ensure that the quality of the fiberglass roof panels in your hands is qualified.