For R&D scientists and product development teams, understanding the role of Unsaturated Polyester Resin (UPR) in creating high-performance composite materials is crucial. UPR serves as a vital matrix resin, binding reinforcing fibers like glass or carbon fibers, to impart exceptional strength, stiffness, and durability to the final product. As a dedicated manufacturer and supplier of UPR, we are at the forefront of providing materials that drive innovation in composite applications.
The Synergy of UPR and Reinforcements
Unsaturated Polyester Resins are a type of thermosetting polymer widely used in the production of Fiber Reinforced Plastics (FRP), often referred to as fiberglass. The 'unsaturated' nature of the resin refers to the presence of double bonds in its molecular backbone. These double bonds are reactive sites that allow the resin to cross-link and cure into a hard, solid, three-dimensional network when combined with a catalyst and promoter. This cured matrix encapsulates the reinforcing fibers, ensuring efficient load transfer and providing the composite with its characteristic mechanical properties.
Key Benefits of Using UPR in Composites:
Applications Driving Demand for UPR Composites:
As a leading unsaturated polyester resin manufacturer, we are dedicated to supplying high-quality UPR that meets stringent industry standards. Whether you are developing new composite products or optimizing existing manufacturing processes, partnering with a reliable supplier in China like NINGBO INNO PHARMCHEM CO.,LTD. ensures you receive materials that deliver exceptional performance and value.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.