Products Description
Butyl rubber (IIR, Isobutylene-Isoprene Rubber) is a synthetic rubber produced by the copolymerization of isobutylene and a small amount of isoprene, possessing excellent airtightness, heat resistance, and chemical resistance.
| Chemical Name | Isobutylene-isoprene rubber |
| Molecular Formula | (C4H8)x(C5H8)y |
| Density G Per Cm3 | 0.91 - 0.92 |
| Glass Transition Temperature C | -73 |
| Hardness Shore A | 30 - 80 |
| Tensile Strength Mpa | 7 - 15 |
| Elongation At Break Percent | 400 - 800 |
| Service Temperature Range C | -50 to +120 |
| Permeability To Air | Very low |
| Ozone Resistance | Excellent |
| Water Absorption | Very low |
| Electrical Resistivity Ohm M | 1 x 10^13 |
| Color | Typically black |
| Resistance To Acids | Good |
Applications of Butyl Rubber for Insulating Waterproof Tape
Electrical Insulation Tape
Used in high-voltage cable wrapping, electrical joint protection, and wire insulation systems.
Waterproof Sealing Tape
Applied in roof waterproofing, pipe wrapping, and construction joint sealing.
Automotive Wiring Tape
Used in automotive harness protection and sealing systems.
Industrial Protection Tape
Used in HVAC systems, pipeline wrapping, and corrosion protection applications.
Package of Butyl Rubber (IIR)
- Package: 1KG/25kg/
- Transportation: by courier/ by air/ by sea
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 you provide samples?
Yes, we can provide a specified quantity of free samples. You only need to cover the shipping costs.
What documents do you support?
We can provide documents such as COA (Certificate of Analysis), TDS (Technical Data Sheet), MSDS (Material Safety Data Sheet), etc.
What is the minimum order quantity?
Answer: The minimum order quantity for standard products is one 20-foot container. Please confirm other quantities with us.
How do you ensure product quality?
(1) All employees possess backgrounds in chemical products or related fields and undergo specialized training before quoting.
(2) Free samples or pre-shipment samples are available before new partners place commercial orders.
(3) Commercial product specifications are identical to samples.
(3) Third-party inspection agencies like SGS can be arranged for pre-shipment inspection upon request.
(4) On-site quality inspections are conducted at certified production facilities compliant with GMP, ISO, and other standards.
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