Butyl rubber, also called IIR rubber or butyl elastomer, is a synthetic rubber known for its outstanding impermeability to gases and resistance to oxidation and ozone.
REDCO is your full-service butyl rubber manufacturer. With over seventy years in the business, we have the earned expertise and hands-on knowledge to complete any butyl elastomer production. All our services are carried out in-house at our USA facility to ensure complete quality on every order. Call 775-882-3100 today to find out how we can support your operations through our cutting-edge manufacturing capabilities!
Properties of Butyl Elastomer
Butyl rubber’s full name is Isobutylene-Isoprene Copolymer. As a synthetic material, IIR rubber does not occur in nature. It features a wide temperature range, is incredibly durable, and displays a high level of flexibility. These features, along with its shock absorption properties and permeability, make it an ideal choice for an extensive range of applications and uses.
IIR Rubber Features
The features of butyl rubber make it a popular choice across industries. The common characteristics of butyl rubber include:
- Specific Gravity: .92
- Tensile Strength, PSI—Pure Gum: 1500
- Tensile Strength, PSI—Reinforced: 2500
- Practical Shore A Hardness Range: 40-75
Benefits of Butyl Rubber
Choosing butyl elastomer for your rubber manufacturing production can produce high-performing final parts, components, and products. Butyl rubber offers the following advantages:
- Excellent permeability
- Excellent resistance to diluted and concentrated acids, moisture, oxygenated solvents, and animal or vegetable oils
- Excellent dielectric properties
- Good to excellent atmosphere and oxidation resistance
- Good heat, tear, and abrasion resistance
- Fair flexibility at low temperatures
- Fair compression set
Limitations of Butyl Elastomer
Despite its versatility and availability, synthetic IIR rubber is not the best fit for every production. It is generally attacked by petroleum solvents, coal tar solvents, and aromatic hydrocarbons. Butyl rubber has poor resilience at room temperature and low resistance to flame.
If your application involves any of these factors, a different rubber will be your best solution. Download our Properties of Rubber chart to explore your options. We also offer in-house custom rubber and elastomer compounding services for specialty projects.
Uses of Butyl Rubber Molding
While IIR rubber is an excellent choice for many rubber manufacturing services, it is uniquely suited to compression molding. Butyl rubber molding is a straightforward and cost-effective process that creates high-quality final products, including:
- Automotive inner tubes and tire liners
- Shock mounts
- Tank liners
- Steam hose
- Shock and vibration products
- Custom die-cut gaskets
- And much more!
Choose REDCO as Your Synthetic Butyl Rubber Manufacturer
Why choose REDCO? We perform all testing processes on-site in our developmental laboratory which is staffed with a full-time chemist. Our comprehensive quality control system is built with your satisfaction in mind, and we work hard to ensure you only receive the best butyl rubber products possible with every order. From initial quote through final delivery, REDCO is here to support your operations through the market’s best butyl rubber products