Get To Know Polyester Unsaturated Resin | JCT Machinery

Polyester unsaturated resin is a type of thermosetting polymer that is widely used in the manufacturing of various products. Here are some key points about polyester unsaturated resin:

1. Composition

Polyester unsaturated resin is composed of a liquid polyester resin and a reactive monomer, typically styrene. The combination of these components forms a cross-linked polymerstructure when cured.

2. Curing Process

The resin undergoes a curing process, often initiated by the addition of a catalyst and an accelerator. This curing process is exothermic, meaning it generates heat, and results in a solid and durable material.

3. Applications

• Composites: Polyester unsaturated resin is commonly used in the production of composite materials, especially fiberglass composites. These composited find applications in boat building, automotive parts, construction materials and more.

• Molded Components: Due to its versatility, polyester unsaturated resin is used to create molded components in various industries.

4. Advantages

• Cost-Effective: Polyester unsaturated resin is generally more cost-effective compared to other resins like epoxy.

• Versatility: It can be easily molded into different shapes and sizes, making it suitable for a wide range of applications.

• Good Adhesion: It adheres well to fiberglass and other resinforcing materials.

5. Limitations

• Shrinkage: Polyester unsaturated resin may experience some shrinkage during the curing process.

• Not Suitable for All Applications: While versatile, it may not be the best choice for applications requiring high strength or resistance to certain chemicals.