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Professional Manufacturer of Unsaturated Polyester Resins

 
1.UPR Resin for SMC/BMC
2.UPR Resin For Marine 
3.UPR Resin For General Purpose
 
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What Is Unsaturated Polyester Resin

 

Unsaturated Polyester Resin (UPR) is one of the high-performance composite materials.
Especially for applications like Sheet Molding Compound (SMC) and Bulk Molding Compound (BMC). These materials are known for their strength, flexibility, and ability to take on complex shapes.

 

UPR is created by the polycondensation of unsaturated dicarboxylic acids (like maleic anhydride) with glycols (like propylene glycol). The final product is a syrupy resin that, when mixed with a curing agent (usually styrene), hardens into a solid thermoset plastic.

 

We specialize in producing high-performance unsaturated polyester resins (UPR). Equipped with advanced facilities and a skilled R&D team, we empower customers with tailored solutions for diverse composite applications.

 
 
 
 

UPR Resin For SMC

Unsaturated Polyester Resin UPR For SMC/BMC Sanitary
Unsaturated Polyester ResinUPR For SMC/BMC Automotive Parts
Unsaturated Polyester Resin UPR For SMC/BMC Water Tank

Common SMC Resin Formulations

SMC application  Resin LSA Magnesium oxide paste resin(MgO) 
Sanitary JL 9320 JL 9218 Customised
Water tank JL 1325 JL 9213 Customised
Automotive parts JL  1300 JL 9212 Customised

Advantage of SMC Resin

UPR RESIN 01

 

Superior Surface Finish

 

 
 

SMC parts molded with our resins achieve Class-A surface finish

UPR RESIN 01

 

Mechanical Strength


UPR-based SMC delivers high tensile, flexural, and impact strength—essential for automotive and industrial applications.
UPR RESIN 01

 

High Productivity

 
 

Annual sales volume of SMC/BMC resin exceeds 20,000 tons, ranking among China’s top 3 in both quality and production capacity. 

24 Hours
 
Quick Response
Stock & Sample
 
Is Free & Available
Technical & Support
 
Provide Service & Advice
Fast Delivery
 
Fast Prodcution & On-time Delivery

UPR Resin For Marine

UPR resin for Marine include hand lay-up processes, vacuum infusion processes, RTM processes, etc.


Mould resins are also available.


JL-189 resin is an unsaturated polyester resin for marine.With benzene tincture, cistincture and standard glycol as the main raw materials.
Unsaturated Polyester Resin URP For Marine Hand Lay Up

UPR Resin For General Purpose

Unsaturated polyester resin is a kind of general purpose resin, low viscosity, good mechanical strength and high elongation. It can be applied in all kinds of FRP products as well as lay-up products.

Package and Shelf Life of UPR Resin

  • Package
    220kg or 1100kg
  • Shelf life
    - 3months under 25ºC,away from  heat sources, direct sunlight or steam pipes,rain etc.
    - Keep sealed to prevent moisture pick-up and monomer loss.

Can't Find Ideal Unsaturated Polyester Resins?

Professional Techincal Team

We specialize in producing high-performance unsaturated polyester resins (UPR). Equipped with advanced facilities and a skilled R&D team, we empower customers with tailored solutions for diverse composite applications.


1700
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Specialized in product
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Specialized in product

About JLON: The Leading Unsaturated Polyester Resins  Supplier

Changzhou JLON Composite Co. has established itself as a leading supplier of carbon fiber fabric. Our products including unidirectional carbon fiber fabric/woven carbon fiber fabric/muitiaxial carbon fiber fabric/prepreg carbon fiber fabric/carbon fiber laminates.
Application include construction, marine, pultruded profiles, transportation, wind energy, and sports.
As a one-stop source for high performance materials, we pride ourselves on our ability to meet diverse customer needs with stable quality and competitive prices.
 
 
Unsaturated Polyester Resin UPR 03_副本
Unsaturated Polyester Resin UPR 04_副本

Welcome To Visit JLON

Cooperation Process

Unsaturated Polyester Resin FAQ

  • Q What are your terms of payment?

    A Usually we do EXW, FOB, CIF, and DDU.

Consult Your Carbon Fiber Fabric Expert

We help you avoid the pitfalls to deliver the quality and value your Carbon Fiber Fabric need, on-time and on-budget.
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+86 13961156380
NO.2-608 FUHANYUAN,TAIHU RD, CHANGZHOU,JIANGSU ,CHINA
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