Unsaturated Synthetic Polyester Resins Market Global Report 2026

The unsaturated synthetic polyester resins market size has grown strongly in recent years. It will grow from $11.1 billion in 2025 to $11.79 billion in 2026 at a compound annual growth rate (CAGR) of 6.2%. The growth in the historic period can be attributed to increasing demand for composite materials in construction applications, rising adoption of fiberglass-reinforced plastics in industrial equipment, growing use of polyester resins across marine and transportation sectors, expanding production of wind energy components using composite materials, and increasing demand for durable and corrosion-resistant materials.

The unsaturated synthetic polyester resins market size is expected to see strong growth in the next few years. It will grow to $14.74 billion in 2030 at a compound annual growth rate (CAGR) of 5.8%. The growth in the forecast period can be attributed to rising demand for lightweight automotive components, increasing adoption of sustainable resin alternatives, expanding renewable energy infrastructure, growing use of advanced composite materials in aerospace applications, and increasing demand for high-strength molded products. Major trends in the forecast period include growing adoption of bio-based unsaturated polyester resin formulations, increasing development of low-styrene-emission polyester resin solutions, rising demand for high-performance composite resin materials, increasing utilization of lightweight thermosetting resin systems, and growing focus on corrosion-resistant polyester resin applications.

The growing demand from the construction industry is expected to propel the growth of the unsaturated synthetic polyester resins market going forward. The construction industry refers to the sector involved in the planning, designing, development, construction, and maintenance of infrastructure, residential, commercial, and industrial structures. The demand from the construction industry is increasing due to rapid urbanization, as expanding population centers are creating the need for additional residential buildings, commercial facilities, and infrastructure development. Unsaturated synthetic polyester resins support the construction industry by offering durable, corrosion-resistant, and lightweight material solutions that are extensively used in applications such as reinforced plastics, panels, pipes, and coatings, thereby enhancing structural performance, durability, and service life. For instance, in June 2025, according to Eurostat, a Luxembourg-based statistical office of the European Union, construction production in April 2025 increased by 3.0% in the euro area and by 2.5% across the European Union compared with April 2024. Therefore, the growing demand from the construction industry is contributing to the growth of the unsaturated synthetic polyester resins market.

Companies operating in the unsaturated synthetic polyester resins market are focusing on developing advanced bio-based unsaturated polyester resins to reduce carbon emissions, decrease dependence on fossil-based raw materials, and support sustainable manufacturing practices. Bio-based unsaturated polyester resins are renewable-content thermosetting resins designed to provide the mechanical and thermal performance of conventional petroleum-based resins while minimizing environmental impact. In May 2025, Bowden Chemicals, a UK-based supplier of raw materials for the polyester resin industry, secured an Innovate UK Smart Grant to develop an innovative bio-based unsaturated polyester resin (UPR). The 18-month project aims to create a resin containing more than 50% renewable content while maintaining the durability and performance of traditional UPRs. The new resin is intended to lower the carbon footprint, reduce reliance on fossil fuels, and promote a more circular and sustainable production model for composite materials.

In March 2025, Nippon Paint Holdings Co., Ltd., a Japan-based paint and coatings manufacturer, acquired AOC Formulations for an undisclosed amount. Through this acquisition, Nippon Paint Holdings aims to enhance its specialty chemicals and composites portfolio by expanding its presence in unsaturated polyester and vinyl ester resin technologies used across construction, marine, transportation, and industrial composite applications. AOC Formulations is a US-based company that provides a broad portfolio of unsaturated polyester resin products, including orthophthalic, isophthalic, DCPD, flexible, and specialty polyester resins.

Major companies operating in the unsaturated synthetic polyester resins market are Sinopec, BASF SE, Polynt Group S.A.R.L., DIC Corporation, Allnex GmbH, AOC LLC, Resonac Holdings Corporation, Scott Bader Company Limited, Ashland Inc., Eternal Materials Co. Ltd., Swancor Holding Co. Ltd., UPC Technology Corporation, Interplastic Corporation, BÜFA Composites GmbH & Co. KG, Japan Composite Co. Ltd., Poliya Composite Resins, Qualipoly Chemical Corporation, Turkuaz Polyester, Orson Resins and Coatings Private Limited, Satyen Polymers Private Limited, Luxchem Polymer Industries, Ruia Chemicals, Tianhe Resin Co. Ltd.

Asia-Pacific was the dominating region in the unsaturated synthetic polyester resins market in 2025. Asia-Pacific is expected to be the rapidly growing region in the forecast period. The regions covered in the unsaturated synthetic polyester resins market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa.

The countries covered in the unsaturated synthetic polyester resins market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

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