Butyl & Derivatives (IIR, BIIR, CIIR)
High-performance elastomers for sealing, air retention, and chemical resistance.
Overview
Butyl Rubber (IIR) and its halogenated derivatives Bromobutyl (BIIR) and Chlorobutyl (CIIR) are valued for their exceptional air retention, flexibility, and chemical resistance.
These elastomers are commonly used in tire inner liners, pharmaceutical closures, adhesives, and sealing applications, where impermeability and elasticity are essential.
Halogenated grades (BIIR and CIIR) offer enhanced curing characteristics and improved adhesion to other rubbers and reinforcing materials, making them ideal for advanced tire and sealing technologies.
Key Properties
Excellent impermeability
Extremely low gas permeability—up to ten times lower than many other elastomers. Critical for tire inner liners and tubes, ensuring consistent air retention.
Weather & ozone resistance
Outstanding resistance to ozone, weathering, and aging, making it highly durable in harsh environments.
Chemical
resistance
Strong resistance to acids, alkalis, and polar fluids. Widely used in chemical processing, protective clothing, and food-grade seals.
Enhanced
curing
Bromo Butyl (BIIR) and Chloro Butyl (CIIR) offer faster vulcanization, improved adhesion, and broader compatibility with other rubbers.
Applications
Inner liners & tubes
Ensuring airtight performance in tire inner liners and inner tubes for lasting inflation stability.
Pharmaceutical closures
Used for stoppers, seals, and vials due to their superior chemical resistance and cleanliness.
Adhesives & sealants
Provides flexibility, adhesion, and impermeability in industrial adhesives and sealing compounds.
Protective & waterproof products
Ideal for consumer and industrial goods requiring weatherproofing and vibration damping.
Grades & Variants
Butyl Rubber (IIR)
Butyl Rubber offers exceptional air retention and chemical resistance.
Commonly used for tire inner liners, tubes, seals, and pharmaceutical closures.
Its impermeability and flexibility make it ideal for dynamic sealing environments.
Bromo Butyl (BIIR)
Bromo Butyl Rubber combines superior adhesion with faster vulcanization.
Used in tire curing bladders, vibration isolators, and rubber adhesives.
Delivers excellent compatibility with natural and synthetic rubbers.
Chloro Butyl (CIIR)
Chloro Butyl Rubber enhances heat and ozone resistance while maintaining flexibility.
Common in tire inner liners, hoses, and molded products requiring airtight performance.
Provides improved bonding strength and thermal stability in harsh conditions.
Why Choose Rogitex
- Reliable sourcing in global Rubber supply
- Decades of experience in rubber compounding and supply.
- Commitment to consistent quality, logistics, and service.
Looking for Butyl Solutions?
Contact our team to discuss your project or technical needs.