Polyisobutylene Market Report 2026

The polyisobutylene market size has grown strongly in recent years. It will grow from $2.76 billion in 2025 to $2.95 billion in 2026 at a compound annual growth rate (CAGR) of 6.9%. The growth in the historic period can be attributed to growth in automotive manufacturing, increasing demand for tire inner liners, expansion of industrial sealant applications, rising use of specialty lubricants, availability of isobutylene feedstock.

The polyisobutylene market size is expected to see strong growth in the next few years. It will grow to $3.78 billion in 2030 at a compound annual growth rate (CAGR) of 6.4%. The growth in the forecast period can be attributed to rising adoption in electric vehicle components, increasing demand for long-life industrial materials, expansion of high-barrier packaging applications, growing focus on performance polymers, increasing investment in advanced elastomer formulations. Major trends in the forecast period include rising demand for high-performance elastomers, increasing use in automotive sealants, growing adoption in lubricant additives, expansion of gas-barrier applications, enhanced focus on chemical resistance.

Rising demand in the tires and tubes market is expected to propel the growth of the polyisobutylene market. Tires and tubes are essential automotive components that support transportation, and polyisobutylene, a synthetic rubber, is widely used in the production of tire inner tubes for buses, vehicles, lorries, and airplanes due to its excellent oxygen barrier properties. For instance, in December 2024, according to the Japan Automobile Tyre Manufacturers Association, a Japan-based industry body, global rubber consumption by tires and related products reached 18.04 million tons, representing a 2% increase over the previous year. Therefore, the rising demand for tires and tubes is driving the growth of the polyisobutylene market.

Increasing demand in the construction industry is also expected to support the polyisobutylene market. The construction sector involves the development of new infrastructure, and polyisobutylene is extensively used in anticorrosion coatings, pastes, adhesives, and protective coatings. For instance, in November 2024, the Office for National Statistics (ONS), a UK-based non-ministerial government department, reported a 0.4% growth in monthly construction output in volume terms. Consequently, growth in construction activities is driving the demand for polyisobutylene.

Major companies in the polyisobutylene market are focusing on capacity expansion initiatives and advanced production technologies to meet the rising demand for high-performance elastomers used in adhesives, sealants, lubricants, and fuel additives. These advancements improve product availability, enhance process efficiency, and strengthen supply reliability compared to traditional production setups. For instance, in August 2023, BASF, a Germany-based specialty chemicals manufacturer, announced a 25% increase in production capacity for its medium-molecular-weight polyisobutenes, marketed under the tradename OPPANOL B, at its Ludwigshafen site. OPPANOL B is valued for its flexibility, chemical resistance, impermeability, and adhesion properties, and is used in applications such as pressure-sensitive adhesives, protective films, lubricants, sealants, and packaging materials. This capacity expansion reinforces BASF’s ability to meet growing global demand and strengthens its position as a leading polyisobutylene producer.

Major companies operating in the polyisobutylene market are Badische Anilin und Soda Fabrik Societas Europaea, TPC Group, Lubrizol Corporation, INEOS Group Limited, Kothari Petrochemicals Limited, Braskem, ENEOS Corporation, Janex S.A., RB Products Inc., Chevron Corporation, Mayzo Inc., Reliance Industries Limited, Evonik Industries AG, KEMAT N.V, Daelim Industrial Company Ltd, ExxonMobil, Lanxess, Dowpol Corporation, Infineum, Shandong Hongrui New Material Technology, Afton Chemical Corporation, Zhejiang Shunda New Material, SABIC, Kemipex, FERRO-PLAST S.r.l., Jilin Petrochemical Company, Efremov Synthetic Rubber Enterprise Company, Naxant, JXTG Nippon Oil & Energy Corporation.

Asia-Pacific was the largest region in the polyisobutylene market in 2025. Asia-Pacific is expected to be the fastest-growing region in the polyisobutylene market during the forecast period. The regions covered in the polyisobutylene market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the polyisobutylene market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The polyisobutylene market consists of sales of polyisobutylene synthesized using raw materials such as 1-butene, isobutylene, and 2-butene. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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