Gel coat resin is a special resin used to make the gel coat of FRP products, and it is a special unsaturated polyester. It is mainly used on the surface of resin products, presenting a continuous thin layer, and the thickness is generally about 0.4 mm. The gel coat resin on the surface of the product provides a protective layer for the matrix resin or laminate material, thereby improving the weather resistance, corrosion resistance and abrasion resistance of the product, and making the product appearance bright and beautiful.

So what are the main applications of gel coat resins? What is the development trend?

At present, gel coat resin has been used in sanitary ware such as shower trays, bathtubs and bed boards, shipbuilding industry such as yachts, lifeboats and patrol boats, transportation, construction, entertainment, medical equipment shells, billboards, telephone booths and security booths and many other fields. Therefore, in order to meet the needs of various occasions, the upgrade of products and production methods is particularly important.

Cangzhou Tianlong Composite Material Co., Ltd. used a bromine-containing compound with a special chemical structure as the main raw material to synthesize an unsaturated polyester resin with low aging yellowing and excellent flame retardant properties, and reported the physical and chemical properties of the resin.

There used to be Gao Shengchao from the Institute of Inorganic Research of the School of Materials Science and Engineering of Zhejiang University. Using silica sol as a carrier, nano-metal silver ions titanium dioxide, zinc oxide and aluminum oxide were loaded on silicon precipitated silica, and a composite inorganic antibacterial was prepared on the surface. And add it to the gel coat resin to prepare an antibacterial gel coat resin. Gao Qingyu, School of Chemistry and Chemical Engineering, Henan University, respectively synthesized gel coat resins by reacting m-phthalic acid, o-phthalic acid and their mixtures with glycols. After adding 1% ethyl benzoin as a photoinitiator, the resin can be cured by ultraviolet light for 30 minutes. The method has the advantages of low pollution, low energy consumption, fast curing, and high productivity.