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Certificate Number 12859
Aquaseal Rubber is ISO 9001 : 2015

Butyl Rubber

Isobutylene isoprene rubber, more commonly referred to as butyl rubber, is an isobutylene isoprene rubber composed of isobutylene and isoprene. Isobutylene is a chemical compound consisting of methyl and propylene. While isoprene, consisting of methyl and butadiene, makes the rubber unsaturated and able to vulcanize.

Today, butyl rubber is one of the most used synthetic rubber compounds on the market. It is highly impervious to gas and moisture permeation. It is also resistant to oxygenated solvents, alkalis, flexing, and abrasion, which makes it suitable for some applications. Butyl rubbers can provide high energy absorption as well as electrical isolation.

Butyl is also highly resistant to sunlight, ozone, heat ageing, animal and vegetable oils, ammonia, and countless other chemicals. The molecular structure of butyl can even be oriented to resist stress. Butyl rubber has a temperature range of -40 degrees C to +110 degrees C.

Popular applications include inner tubes, o-rings, stoppers for medical bottles, and pharmaceutical supplies.

Benefits of Butyl Rubber

  • Low permeability to gases
  • Excellent resistance to ozone and sunlight
  • Resistant to abrasion, oxidation, corrosion and gas permeation
  • High dielectric strength

Butyl Rubber Products we Offer

Request a specification sheet from us below.

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    Advantages of using Aquaseal

    • Bespoke rubber products
    • Manufactured in-house
    • Small run quantities
    • Made in the UK
    • ISO 9001 accredited

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