TECHNICAL COMPOUNDS
IIR - Butyl / Halo-Butyl Rubber

Description
Butyl Rubber
Hardness range
From 50 to 70 shore A
Nitrosamine free
Available on request
Transformation System
Injection / Compression / Extrusion
Vulcanization
Sulfur / Resins
Field of Application
Technical Article / Tyre Engineering
Main Reference Standards
Main Manufacturers’ Standards
TECHNICAL ARTICLE COMPOUNDS
BUTYL / HALO-BUTYL
RUBBER
Classification
Butyl rubber is an isobutylene-isoprene copolymer that can be chlorinated or brominated (between 1% and 2%) to obtain the chlorobutyl (CIIR) and bromobutyl (BIIR) versions.
Polymer Type
These polymers have good mechanical properties up to usage temperatures of 120°C, but their most important characteristic is their extremely high impermeability to air and gases.
Application
In addition to their widespread use in tires and inner tubes (resistance to air pressure loss), these elastomers are also widely used in the field of membranes.




