Products Description
Isobutylene-isoprene rubber, commonly known as butyl rubber (IIR), is a synthetic copolymer of isobutylene and isoprene. Its unique structure provides extremely low permeability to gases and moisture, excellent vibration damping, and outstanding resistance to heat, weathering, ozone, and chemicals, resulting in superior aging performance.
| Property | Typical Value |
|---|---|
| Product Name | Butyl Rubber / Poly(isobutylene-co-isoprene) |
| CAS Number | 9010-85-9 |
| Appearance | White to light yellow rubber bales |
| Polymer Type | IIR (Isobutylene Isoprene Rubber) |
| Density | 0.91 – 0.93 g/cm³ |
| Glass Transition Temperature (Tg) | ≈ -65°C |
| Service Temperature Range | -50°C to +120°C |
| Gas Permeability | Extremely low |
| Oil Resistance | Moderate |
| Weather Resistance | Excellent |
| Main Application | Adhesives, sealants, waterproof compounds |
Applications of Butyl Rubber (Adhesives & Sealants)
Construction Sealants
Used in roofing sealants, curtain wall adhesives, expansion joint sealants, and waterproofing systems, providing long-term sealing and weather resistance.
Industrial Adhesive Sealants
Applied in pipeline sealing compounds, HVAC sealing systems, and equipment joint adhesives, ensuring airtight and durable bonding.
Automotive Sealants
Used in body sealing strips, windshield adhesives, vibration damping sealants, improving noise reduction and vehicle durability.
Waterproof Adhesive Systems
Widely used in waterproof membranes, underground structures, tunnels, and building envelope sealing, preventing water and moisture penetration.
Package and transportation of Butyl Rubber
- Package: 1KG/25kg/
- Transportation: by courier/ by air/ by sea
Butyl Rubber Storage
Stored in a dry and cool condition.
Company Profile
Tianjin Gnee Biotech Co. Ltd. is a specialized manufacturer of chemical raw materials based in China. Established in 2016, the company possesses over 10 years of export experience, with its products distributed to more than 60 countries worldwide.
Key products include Polyisobutylene (PIB-covering low, medium, and high molecular weight grades), Butyl Rubber (IIR), and Halogenated Butyl Rubber, among others.
FAQ
Can I request samples for testing?
A: Yes, we provide samples. The customer is responsible for the initial shipping cost, which will be refunded upon our first cooperation.
How does your factory guarantee quality control?
A: Our factory is ISO9001:2008, REACH, and COA certified, ensuring strict quality control. Every batch of goods undergoes SGS inspection before leaving the factory.
What is your delivery time?
A: Usually, we ship within 5 to 10 days after receiving payment. Large orders will be confirmed with the production department to ensure timely and quality-assured delivery.
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