What’s the difference between epoxy resin and UPR(unsaturated polyester resin)? Can epoxy resin to be used for a SMC(fiberglass compression molding ) tool?
As a supplier for customized fiberglass products, Shanghai Olimy has been producing and delivering fiberglass products for over 10 years, most of our products are shipped to America, Canada, Italy, France and UK etc.
We are always asked by customers about the difference between epoxy resin and URP(Unsaturated polyester resin). Generally, epoxy resin is commonly used for hand laid process, while UPR(Unsaturated polyester resin) is more often used for SMC(fiberglass compression molding) process, this is because most SMC(fiberglass compression molding) material is made with normal working temperature, while epoxy resin is with much higher viscidity than normal unsaturated polyester resin, so need to increase the working temperature to reduce the viscidity of the epoxy resin first, only with this way can epoxy resin to be used for SMC(fiberglass compression molding) material. In addition, after forming, you have to increase the viscidity of the material, with both of the above steps, the final SMC(fiberglass compression molding) material with epoxy resin can be used for normal SMC(fiberglass compression molding) tool and run normal compression molding process.
As a supplier for customized fiberglass products, Shanghai Olimy has been producing and delivering fiberglass products for over 10 years, most of our products are shipped to America, Canada, Italy, France and UK etc.
We are always asked by customers about the difference between epoxy resin and URP(Unsaturated polyester resin). Generally, epoxy resin is commonly used for hand laid process, while UPR(Unsaturated polyester resin) is more often used for SMC(fiberglass compression molding) process, this is because most SMC(fiberglass compression molding) material is made with normal working temperature, while epoxy resin is with much higher viscidity than normal unsaturated polyester resin, so need to increase the working temperature to reduce the viscidity of the epoxy resin first, only with this way can epoxy resin to be used for SMC(fiberglass compression molding) material. In addition, after forming, you have to increase the viscidity of the material, with both of the above steps, the final SMC(fiberglass compression molding) material with epoxy resin can be used for normal SMC(fiberglass compression molding) tool and run normal compression molding process.
没有评论:
发表评论