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Photocurable fiber-reinforced composite sheets belong to special fiberglass sheets; they are multifunctional fiber-reinforced composite photocurable materials made from various special corrosion-resistant and waterproof materials. The product appears as a soft film-like tape, usually in a light yellow color. It can cure rapidly when exposed to sunlight or ultraviolet light, thereby forming a highly strong, highly adhesive, seamless-sealing anti-corrosion, fire-resistant, and insulating protective layer. This reduces construction time significantly; the process is simple and costly to implement. It can be used for insulation of pipes containing petroleum, natural gas, organic solvents, etc., as well as for providing heavy-duty anti-corrosion protection, insulation, repair, and on-site maintenance of storage tanks, vats, reaction vessels, etc. It can replace traditional coating methods such as hand-laid fiberglass. UV-cured fiber-reinforced composite sheets are lightweight, require simple engineering design, and are easy to use. They can be cut or shaped according to the needs of a project, and then applied by sticking, winding, or wrapping around the substrate that needs reinforcement or protection. They cure using sunlight or ultraviolet lamps, without the need for additional curing agents or accelerators. The curing time is generally only 5-20 minutes, which significantly reduces construction time, simplifies the construction process, and lowers labor costs. After curing, it forms an ultra-high-strength, seamless, sealed protective coating that is resistant to corrosion, fire, and insulation; its mechanical properties are comparable to those of most metal materials. The product boasts excellent anti-aging properties and a long service life. It also has superior chemical resistance, offering good protection against common acids, bases, salts, various oils and organic solvents, brines, seawater, etc. Additionally, it features high density and strong resistance to the penetration of corrosive substances, enabling it to effectively prevent chemical penetration and isolate the substrate from corrosive agents to the greatest extent possible, thus ensuring the long-term stability of the substrate. It can replace traditional methods such as lining with rubber, plastic, fiberglass, stainless steel, granite, furan resin, acid-resistant tiles, and acid-resistant cement, and is suitable for high-temperature environments.