logo-black

Polyester resin

logo-dark

At Composites, we are proud to be leaders in the distribution of raw materials for the composites' industry, with presence in both Mexico and the United States.
Our commitment is to provide high quality products that drive the success of your industrial projects.
Today we want to highlight one of our star products: polyester resin.

Engineering team in dialogue.

What is polyester resin?


It is a versatile and durable material widely used in various industries. This type of resin is obtained through the polymerization of organic acids and polyhydroxylated alcohols, resulting in a polymer that, when mixed with catalysts such as methyl ethyl ketone peroxide, hardens to form rigid and resistant structures. Polyester resin has the ability to establish strong composites with fiberglass, known as fiberglass reinforced plastics (FRP), making it an attractive material for the manufacture of structural parts, tanks, panels and other components in multiple industries.

Properties of polyester resin


Polyester resin is an essential material in the composite's industry, and at IMATE Composites, we are proud to offer products of the highest quality. This versatile and resistant material has been the basis for applications in sectors such as automotive, marine and construction.


  • It is known for its mechanical, electrical and chemical properties, which give it good stability.
  • The characteristics of this material are exploited by industries that manufacture waterproof covers, bottles, and even fabrics.
  • It does not need a long time to dry, so it does not have the outstanding bonding capacity that distinguishes epoxy resin.
  • It has adhesive properties that are used to make upholstery, as well as sheets, covers, and curtains.

Durability and strength

One of the most notable properties of polyester resin is its durability and strength. This material can withstand extreme conditions without compromising its structural integrity, making it perfect for very demanding parts. In addition, it offers excellent resistance to corrosion and chemicals, ensuring a long service life in aggressive environments.



Flexibility and adaptability

Another key point of polyester resin is its flexibility and adaptability. It can be easily molded into a wide variety of shapes and sizes, allowing it to be used in customized and complex projects. Its strength-to-weight ratio is excellent, providing strong components without adding unnecessary weight.



Carpenter using polyester resin.


Surface finish

It also stands out for its surface finish. Products made from this material have a superior aesthetic appearance, with smooth, uniform surfaces that enhance the appearance of the final product.



Cost and versatility

Compared to other resins, it offers a lower cost, making it an economical choice without sacrificing quality. Its versatility in processing methods, such as hand lay-up, compression molding and resin infusion, make it accessible for a wide range of applications.

At IMATE Composites, we understand the importance of reliable, high quality materials for your projects. Our polyester resin meets the highest quality standards, guaranteeing exceptional results.


Impact of polyester resin in the industrial sector


This material has revolutionized the industrial sector due to its many advantages. First, its ability to establish high-strength composites has enabled the manufacture of lighter and more durable products. This not only improves production efficiency, but also reduces long-term operating and maintenance costs. In addition, its resistance to chemicals and its dimensional stability under extreme conditions make it ideal for harsh industrial applications.


One of the main uses of polyester resin is as a rigid mold, because its flexibility in handling allows figures to be made with a great finish, which at the end of the process are very resistant thanks to the strength of this material.


Its hardness, tensile strength, and ability to density favor that the resin is widely used in the marine and automotive sectors. It can be used to make bodywork and hulls, as well as boats and surfboards, among other components of these industries.


Likewise, when it comes into contact with styrene monomer, it can be diluted and in this state, it is used to repair swimming pools, boats, sailboats, and automobiles.


In homes, we can see the resins in the reinforcements that have kitchens and bathrooms, because they are also used in the manufacture of bathtubs. There are many uses for this material, it all depends on the industry that adds it to its processes as raw material.

Applications in construction projects




In the construction industry , polyester resin plays a crucial role. It is used in the manufacture of panels, coatings, pipes, and composite structures that require high corrosion and impact resistance. Its use is common in infrastructure projects, such as bridges, buildings, and water treatment plants, where durability and strength are essential.
Additionally, often chosen for its cost-effectiveness and ease of application, making it a preferred material for both large-scale and smaller projects. Its ability to bond with various materials and provide long-lasting performance ensures that structures remain reliable and maintenance-free for extended periods.

Young Asian man smiling.

Cure time and finish resin


The cure time of polyester resin can be adjusted depending on the specific requirements of the project, providing flexibility and control over the manufacturing process. Additionally, the finish resin can be applied as a topcoat to enhance surface smoothness and gloss, ensuring a high-quality final product.

Man quoting materials.

Use our polyester resin for composite fabrication




FAQ's

Polyester resin is a versatile and durable material widely used in various industries. This type of resin is obtained through the polymerization of organic acids and polyhydroxylated alcohols, resulting in a polymer that, when mixed with catalysts such as methyl ethyl ketone peroxide, hardens to form rigid and resistant structures. Its ease of use and exceptional mechanical properties make it a preferred choice in multiple applications.
In the construction industry, polyester resin plays a crucial role. It is used in the manufacture of panels, coatings, pipes, and composite structures that require high corrosion and impact resistance. Its use is common in infrastructure projects, such as bridges, buildings, and water treatment plants, where durability and strength are essential. Additionally, polyester resin is often chosen for its cost-effectiveness and ease of application, making it a preferred material for both large-scale and smaller projects. Its ability to bond with various materials and provide long-lasting performance ensures that structures remain reliable and maintenance-free for extended periods.
The cure time of polyester resin can be adjusted depending on the specific requirements of the project, providing flexibility and control over the manufacturing process. Additionally, the finish resin can be applied as a topcoat to enhance surface smoothness and gloss, ensuring a high-quality final product.

Contact us today!

At Composites, we are committed to providing you with the highest quality products and exceptional customer service. If you are looking for polyester resin for your industrial or construction projects, look no further. We have a wide range of options to suit your specific needs.

Our experts are available to advise you and provide customized solutions to optimize the performance of your projects. Don't miss the opportunity to improve the quality and durability of your products with our polyester resin.

Working Hours

Monday-Friday : 08:00–18:00

Phone & Online

Phone : 915 272 7010
sales@imatecomposites.com



Contact us now

Ready to take the next step? Request a quote today and discover how Composites polyester resin can transform your projects. Contact us through our website or call our representatives in Mexico and the U.S. We're here to help you succeed!

Send Us an email

We are very responsive to messages

  • CTG logo
  • Several logos
  • Nouryon logo
  • Luperox Logo