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Butyl Rubber (IIR) Production

Thursday, October 11, 2018

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Butyl Rubber (IIR) Production. Synthetic Rubber Manufacturing Industry

Butyl rubber (IIR), also called isobutylene-isoprene rubber, a synthetic rubber produced by copolymerizing isobutylene with small amounts of isoprene. Valued for its chemical inertness, impermeability to gases, and weather ability, butyl rubber is employed in the inner linings of automobile tires and in other specialty applications.

Butyl Rubber Applications

Butyl rubber is one of the most commonly used rubber materials used in the manufacturing of a wide range of industrial rubber products. The remarkable properties of butyl rubber like excellent impermeability/air retention and good flex properties, make it a key polymer for a wide range of technical rubber applications. Below the use of butyl rubber in various applications:

·         Automotive Tires

One of the most popular use of butyl rubber is in the making of automotive tires. The first commercial use of butyl rubber was seen in the tire inner tubes. Regular butyl provide excellent inflation pressure retention for truck, bicycle, industrial, agricultural and specialty tires. Butyl rubber is capable to produce more durable tubeless tires with the air retaining inner liner chemically bonded to the body of the tire.

·         Healthcare

The demands for elastomers are extremely high in the medical and pharmaceutical sectors. Butyl rubber is usually preferred as it ensures protection of sterile pharmaceutical products against external contamination during use and storage. Butyl rubbers are widely used in pharmaceutical rubber products, like closures, stoppers, caps, seals for infusion containers, injection vials, blood collection tubes and other pharmaceutical bottles. Pharmaceutical stoppers and seals in various shapes and sizes are made using butyl rubber, which provides high cleanliness and gas/moisture barrier in these.

·         Industrial Applications

The excellent properties of high damping, resistance to heat aging, resistance to ozone, and barrier properties make them perfect for manufacturing automotive vibration control, hoses and gaskets. Butyl rubbers are also used to improve formulations for conveyor belts, tank linings and condenser packaging.

·         Construction

Butyl rubber is also used in the construction industry. Using butyl rubbers, the weather ability of asphalt, contact cement and sealant tapes can be improved.

·         Adhesives

Use butyl rubbers to provide adhesive properties in tapes, valve cement, and flooring adhesives.

·         Consumer products

Butyl rubbers are used in ball bladders for sports goods and electrical appliance condenser packing. Excellent air retention properties make butyl rubber a major component in bladders used in the sporting goods industry. Similarly the low permeability and chemical inertness of butyl rubber makes it ideal to make condenser packing for electrical appliances. Butyl rubber is used for making the gum base in chewing gums.


·         Low permeability to air, gases and moisture

·         Vibration damping

·         Low glass transition temperature

·         Low modulus elastomer

·         Low compression set

·         Resistance to aging and to weathering from atmospheric exposure

·         Wide vulcanization versatility

·         Fast cure rates

·         Processing safety: no nitrosamines or nitrosamines precursors

·         Broad range of durometer and tensile strength properties

·         Low filler content for specific gravity, cost-effective compounding

Halogenated Butyl Rubber

Halogenated butyl rubber extend the usefulness of butyl rubber by providing much higher curing rates and enabling co vulcanization with general purpose rubbers such as natural rubber and styrene butadiene rubber (SBR).

Halogenation of butyl rubber with bromine produces rubber which is particularly suitable for the tire industry, wherever low permeability to gases and liquids is required, e.g., tire inner liners, hoses, seals and membranes. It is also suitable for pharmaceutical stoppers and rubber articles needing good resistance to chemicals, weathering, and ozone, such as tank linings, conveyor belts, and protective clothing.

Market Outlook

Butyl rubber is a type of synthetic rubber mostly used in tires and tubes, as it possesses special properties such as permeability to gas, excellent resistance to heat, chemicals & ozone and high low-temperature flexibility. Other than tires and tubes, butyl rubber is also used in sealants, adhesives, protective clothes, pharmaceutical stoppers, closures, vials & tubes, electrical cables, hoses and shoe soles. The application of butyl rubber has increased lately. Among various areas of application for butyl rubber, tires and tubes is constant in its position as the dominating segment in the global market.

 Butyl rubber has emerged as the most suitable product for storing pharmaceutical products. The inherent properties of butyl rubber makes it an obvious choice for stoppers and seals that are used to provide high cleanliness and gas barriers. Increasing spending on pharmaceutical applications, primarily owing to increasing health consciousness and demand for a high level of cleanliness is expected to provide substantial growth opportunities in the global butyl rubber market.

The global butyl rubber market size was valued at USD 2.88 billion in 2016. Superior product properties in comparison to natural rubber, in terms of tear strength, aging, and heat resistance are anticipated to provide a positive scope for market growth over the forecast period.


The global butyl rubber market is anticipated to display considerable growth in the near future due to its rising demand for several applications. Typically, butyl rubber contains 98% polyisobutylene and 2% isoprene that are randomly spread in the polymer chain. Due to the exceptional product characteristics of butyl rubber, which includes excellent permeability to moisture and gases and outstanding heat resistance and ageing stability, they are preferred over conventional rubbers.

Butyl rubber is used in several end-user applications such as adhesive and automotive. The enhanced damping property of butyl rubber accounts for its huge demand in the tire industry. Furthermore, the increasing demand for butyl rubber in the manufacture of plastics is expected to propel this market in the coming years.

The growing demand for butyl rubber for damp proofing and roof repairing is expected to fuel the growth of this market in the coming years. In addition, the use of food grade butyl rubber in food applications is expected to propel demand.

Butyl rubber is used in the explosives industry for the manufacture of plastic explosives. The increasing demand for butyl rubber as a binding agent in explosives along with the rising demand for explosives from the mining industry will propel its demand over the forecast period. Furthermore, butyl rubber can be added to diesel fuel to withstand fouling of fuel injectors. Last but not the least, increasing environmental considerations for regulating hydrocarbon and particulate matter emissions is expected to fuel market growth.


The global butyl rubber market is majorly segmented on the basis of types, application, end users and region. Based on types butyl rubber the market is segmented into regular butyl rubber, chlorinated butyl rubber, brominated butyl rubber. Based on application of butyl rubber the market is segmented into adhesives, sealant for rubber roof repair, tubeless tire liners, medicine bottles, mechanical goods, and others. Based on end user butyl rubber the market is segmented into automotive industry, pharmaceutical industry, consumer products, rubber industries, construction industries, and others and based on region market is segmented into North America, Europe, APAC, Latin America, Middle East & Africa.

Indian Scenario

There is presently no production of butyl rubber in India. Indian demand for butyl rubber is met entirely by import.

Indian Import

Period (April to March)

In metric tonne










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