With excellent properties for use in sealing, Butyl is a popular material choice for many applications. It ages well in both ozone and sunlight and because of its ability to form an airtight seal and due to excellent low permeability to gases it is used extensively in vacuum sealing.
Butyl has superior shock-dampening capabilities and is excellent as an electrical insulator and outstanding resistance to heat, abrasion and tearing.
Characteristics of Butyl
Butyl is ASTM D-2000 Classification class AA, BA and is known by its chemical name Isobutylene
- Tensile Strength: 1500 P.S.I.
- Elongation – 350% Maximum
- Heat Aging Resistance – Excellent
- Abrasion Resistance – Good
- Compression Set – Good
- Tear Resistance – Good
- Weather Resistance – Excellent
- Ozone Resistance – Excellent
- Gas Permeability Resistance – Excellent
- Oil Resistance – Poor
- Standard Temperature Range: -50° to +250°
Hardness (Shore A): 40-75
Common Uses Of Butyl
Because of Butyl’s low permeability to gases, it is often used in vacuum sealing and can be used as a hydraulic seal as well. Uses include
- Hydraulic Seals
- Vacuum Seals
- O-Rings
- Tank Liners
- Pond Liners
- Construction Hoses
- Shock Mounts
- Stoppers and Seals for Medical Containers
- Hardness (Shore A): 40-75
To understand more about how materials react to chemicals, view this chemical resistance chart from The Los Angeles Rubber Group Inc.
Butyl is available from Vip Rubber and Plastic in extruded form as well as molded and in sheet.
Industries Using Butyl
Butyl is used in the medical industry for tubing and hoses but also as stoppers for glass bottles, medicine bottles, and pharmaceuticals as well as caps and seals for containers requiring a gas/moisture barrier to prevent contamination. It is used in construction to improve the weathering ability of sealants and asphalt and is used in manufacturing across a wide range of industries for conveyor belting formulations and liners. It can also be found in a wide range of consumer products in electrical and sports applications.
Vip+ Customization
We offer a wide range of custom services
- Printing on Parts
- Splicing
- Cut-to-Length
- Fabricated Coated Extrusion/Mold
- Fabric Reinforced Sheet
- Co-extrusions
- PSA Application
- Custom Compounding
- Custom Dies
- Custom and Standard Shapes