Butyl Rubber Sheeting

Butyl Rubber Sheeting  

Butyl rubber sheeting (IIR) is a high performing, synthetic elastomer manufactured from a blend of isobutylene and isoprene. It offers excellent thermal stability along with resistance to ageing, ultra-violet light and weathering, making it suitable for a range of indoor and outdoor applications.

The highly impermeable structure of Butyl rubber makes the material a popular option in applications that require air retention or the sealing of gas and compressed air. It is not, however, recommended for use with petroleum, oils or chlorinated solvents.

Available to purchase in rolls, strips or cut to size sheets, Butyl rubber sheet is commonly manufactured into gaskets and seals due to the specific properties it provides.

Our range of Butyl rubber sheeting is available to buy online at PAR Direct by clicking the red button above. From here, you can benefit from free standard UK mainland delivery on all orders over £50.00 (ex. VAT).

Butyl is also referred to as isobutylene-isoprene rubber.

Key Features

  • Shore Hardness: 65° ± 5°.
  • Temperature: -40°C to +140°C.
  • Excellent impermeability to most gasses, compressed air and moisture.
  • Offers outstanding resistance to UV and ageing.
  • Commonly used as a gasket material when an air tight seal is required.
  • Smooth plate finish on both sides as standard.


  • This material is fully CE, PAH, RoHS and REACH compliant.


Product Code Roll Length (mtrs) Roll Width (mtrs) Thickness (mm)
BUL-1.4M-1 10 1.4 1
BUL-1.4M-1.5 10 1.4 1.5
BUL-1.4M-2* 10 1.4 2
BUL-1.4M-3 10 1.4 3
BUL-1.4M-4* 10 1.4 4
BUL-1.4M-5 10 1.4 5
BUL-1.4M-6 10 1.4 6
BUL-1.4M-8 5 1.4 8
BUL-1.4M-10 5 1.4 10
BUL-1.4M-12* 5 1.4 12
BUL-1.4M-15* 5 1.4 15
BUL-1.4M-20* 5 1.4 20

*Non-Standard Size. Minimum order quantities and lead times may apply. Please enquire for more information.

Technical Specification

Application Performance
Petroleum Poor
Lubricating Oils Poor
Acid Excellent
Alkali Excellent
Impermeable to Gases Excellent
Ozone & Weathering Excellent
Oxidation Good
Water Resistance Good

Please note that the above table is intended as a guide only. For more information regarding the compatibility of Butyl sheet with specific chemicals please see our chemical resistance chart. 

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