Polyester resin is an unsaturated synthetic resin. Polyester resin mostly is used in glass fiber reinforced products. These resins are very popular due to their price and quality performance. Polyester resin is usually used in large construction manufacturing like tanks or yachts, also it is very popular material in automotive part, polymer concrete, landscape and design object manufacturing . When working with polyester resin, a special care should be taken. Always wear protective masks, gloves and be in a well-ventilated room.