Butyl Rubber Sheet
Butyl Rubber Sheet is also known as isobutylene-isoprene rubber, or IIR. It is valued for its low permeability to air and moisture. The material remains effective at both low and high temperatures and is used in marine and electrical applications.
- 65 ± 5 Shore A hardness
- -40°C to +140°C temperature range
- Smooth plate finish on both sides
- Good resistance to UV exposure, weathering and aging
- Excellent resistance to compressed air, moisture and most gases
You can order the sheet in rolls, strips or cut-to-size pieces to suit your installation. This helps reduce on-site cutting and gives you better control over material use.
Tell us the dimensions, quantity and service conditions you need. Weprofab can help you confirm the suitable format before quotation.
Professional Butyl Rubber Sheet Supplier in China
Butyl rubber sheet is a high-performance synthetic elastomer made from isobutylene and isoprene. Its low permeability to air and moisture makes it suitable for sealing and lining applications where leakage control is important.
The material remains effective across a wide temperature range and provides useful vibration-damping performance. It also resists weathering, ozone and many acids and alkalis. However, it is not recommended for oils, petroleum products or chlorinated solvents.
Weprofab supplies butyl rubber sheet in rolls, strips and cut-to-size sheets. You can specify the required form and dimensions to reduce cutting work and material waste during installation.
Butyl Rubber Sheet Wide Applications
Butyl rubber sheet can be cut or formed for sealing, lining and isolation work. Choose the format according to the contact surface, movement and installation method.
- Tank and pipe linings
- Flexible connector sleeves
- Tank and pipe flange gaskets
- Weather-resistant flashing
- Isolation barriers
- Insulating strips
- Acid-resistant splash guards and covers
- Vibration-reducing pads and strips
Butyl Rubber Sheet Specifications
- Technical Data
| Material | Butyl rubber (IIR) |
|---|---|
| Shore Hardness | 65 ± 5 Shore A |
| Temperature Range | -40°C to +140°C |
| Surface Finish | Smooth plate finish on both sides |
| Standard Tolerance | Thickness ±10%; Width ±2%; Length ±5% |
| Available Forms | Rolls, strips and cut-to-size sheets |
| Not Recommended For | Oils, petroleum products and chlorinated solvents |
Standard Tolerance:
- Thickness: ±10%
- Width: ±2%
- Length: ±5%
Yes. Butyl rubber sheet combines flexibility with good resistance to weathering and aging. Its service life still depends on the temperature, chemical exposure, movement and compression in your application, so these conditions should be checked before the material is selected.
No. Butyl rubber sheet is not recommended for petroleum-based fluids, oils or chlorinated solvents. If oil contact is expected, select the rubber compound according to the actual fluid and operating temperature.
Yes. Test certificates are available for the supplied rubber products and can cover the relevant physical properties and, where applicable, chemical properties. Confirm the required document with the order so it matches your project or inspection needs.
Start with the sealing gap, flange surface condition, pressure and available bolt load. A thicker sheet can accommodate more surface irregularity, but excessive thickness may increase movement or creep. Check the final thickness against the actual joint design rather than selecting it from one general rule.
Choose butyl rubber when low air or water-vapour permeability is the main requirement. For hot-water or steam service, EPDM may be a more suitable starting point. Always compare the operating temperature, pressure and contact medium before approving either material.
Roll weight depends on the sheet width, length, thickness and compound density. For freight planning, calculate the net rubber weight from the confirmed product data, then allow separately for the core and packaging. Do not estimate shipping weight from roll dimensions alone.
