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Where is Butyl Rubber (IIR) used?

Jan 26, 2026 Leave a message

 

What is butyl IIR?

 

Butyl rubber is composed by copolymerizing isobutylene which is with small amount of isoprene. It is like EPDM possessing excellent resistance to chemical and polar fluid, outstanding electrical insulation and good ozone resistance.

 

 

Where is Butyl Rubber (IIR) used?

 

 

Automotive Industry


Butyl Rubber (IIR) plays a vital role in the automotive industry, primarily used in manufacturing tire inner tubes and airtight layers. Its exceptional airtightness and heat resistance enable tires to maintain stable performance under high-temperature and high-pressure conditions. Butyl rubber is also employed in producing automotive components such as shock absorbers and vibration dampers to enhance driving comfort and safety.

 

 

Medical Field


In the medical field, Butyl Rubber (IIR) is extensively used to produce pharmaceutical bottle stoppers, syringe seals, and infusion tubing. Its excellent chemical inertness and airtight properties ensure the stability and safety of medications, while its low permeability effectively prevents the ingress of external contaminants.

 

 

Construction Industry


In construction, butyl rubber primarily serves as a waterproofing material and sealant. Its outstanding weather resistance and aging resistance make it the preferred choice for high-quality building sealants. It is also used in manufacturing roof waterproofing membranes and underground waterproof layers, significantly extending the service life of structures.

 

 

Other Applications
Beyond these primary fields, Butyl Rubber (IIR) is also employed in manufacturing various industrial products such as conveyor belts, hoses, and cable insulation. Its chemical resistance and low gas permeability offer broad application prospects in industries including chemicals, petroleum, and power generation.

 

Is Butyl Rubber (IIR) Heat Resistant?

 

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