The weather resistance of unsaturated polyester resin is required to have excellent weather resistance compared to outdoor polyester resin. The methods to improve the weather resistance of polyester resin fiberglass include: (1) adding ultraviolet collectors; (2) Using a portion of methyl methacrylate as a crosslinking agent; (3) Cover the toilet surface with gel coated polyester; (4) Use fillers with high shielding power, etc. Recently, it has been widely used in molding and processing, and most of them are polyesters made by reacting terephthalic acid, ethylene glycol, and maleic anhydride. There are already products available in the United States and Japan; The latter not only has a decorative effect, but also plays a role in protecting the surface layer, so it requires easy operation, small shrinkage, high toughness, no cracking, and fast curing. The polyester of isophthalic acid neocene glycol type produced by Eastman Company in the United States has a good effect as a gel coating resin.

This resin has 50-60% of its properties as a filler, making it cost-effective and has the characteristics of low heat resistance, small shrinkage, and flame retardancy. It can be used as artificial wood. The resin rod is the choice for curing systems, and customer service understands the impact of water on curing. According to foreign reports, the cobalt salt system of methyl ethyl ketone peroxide is generally selected, and it can only be effective when combined with tertiary amine salts for further promotion.

Photosensitive unsaturated polyester resin is mainly used to manufacture photosensitive resin plates. This resin plate has various advantages such as easy and fast plate making, and good ink transfer. The APR version abroad is an unsaturated polyester type; Later on, the Westphalia version was also released. In recent years, research on photosensitive resins has been carried out in cities such as Shanghai, Guangzhou, Xi'an, and Beijing in China.