Global Modified LER Market Strategic Research Report

Scope of the Report

The global Modified LER market size is predicted to grow from US$ 1,279 million in 2025 to US$ 1,917 million in 2032; it is expected to grow at a CAGR of 5.4% from 2026 to 2032.

In 2025, global sales volume of modified LER reached 448.88 k tons, with an average global market price of US$2,769 per ton and an industry average gross margin of about 10.5%.

The major upstream raw materials include epichlorohydrin, bisphenol A, sodium hydroxide, organic solvents, and others. Major upstream suppliers include Olin, LOTTE Fine Chemical, INEOS, SABIC, LG Chem, CCP, Nan Ya Plastics, and others. Major downstream customers include PPG, AkzoNobel, BASF, Henkel, Arkema, Owens Corning, DuPont, Solvay, and others.

modified LER refers to a class of functionalized epoxy resin materials based on conventional liquid epoxy resins whose viscosity, flexibility, toughness, impact resistance, heat resistance, adhesion, weather resistance, or processing performance is enhanced through chemical reactions, blending, grafting, toughening, or the incorporation of functional modifying components. The base resins typically include bisphenol A-based and bisphenol F-based liquid epoxy resins, while common modification methods include reactive diluent modification, rubber modification, polyurethane modification, silicone modification, and other toughening or functional modification approaches. Compared with unmodified liquid epoxy resins, modified LER is designed to address specific performance limitations such as brittleness, excessive viscosity, insufficient low-temperature performance, or limited impact resistance, while retaining the good adhesion, mechanical strength, chemical resistance, corrosion resistance, and electrical insulation properties of epoxy resins. Different modification systems have distinct performance focuses. For example, reactive diluent modification is primarily used to reduce viscosity and improve flowability and wetting performance; rubber and polyurethane modification mainly improve toughness, impact resistance, and peel strength; and silicone modification places greater emphasis on enhancing heat resistance, weather resistance, and flexibility. Because its properties can be specifically tailored to downstream application requirements, modified LER is widely used in structural adhesives, electronic encapsulation and potting, composites, industrial and anticorrosive coatings, automotive applications, wind energy, new energy, construction materials, and other high-performance industrial applications, making it an important product category in the development of liquid epoxy resins toward higher value-added and greater functionality.

This report presents a comprehensive overview of the global Modified LER market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• Reactive Diluent Modified LER
• Rubber Modified LER
• Urethane Modified LER
• Silicone Modified LER
• Others

Segment by Epoxy Equivalent Weight (EEW)

• Low EEW Epoxy Resin
• Medium EEW Epoxy Resin
• High EEW Epoxy Resin

Segment by Base Epoxy Resin Backbone

• BPA-Based Modified LER
• BPF-Based Modified LER
• Novolac-Based Modified LER
• Others

Segment by Application

• Paints and Coatings
• Adhesives
• Composites
• Electrical and Electronics
• Others

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global Modified LER market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Paints and Coatings, Adhesives, Composites evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact