Butyl rubber is a synthetic rubber made from the polymerization of isobutylene, often combined with a small amount of isoprene. It is known for its excellent impermeability to gases, making it ideal for applications like inner tubes in tires and seals. Its durability and resistance to aging, UV light, and chemicals also contribute to its widespread use in various industries. This versatile material is commonly used in the production of adhesives, coatings, and medical supplies. Butyl rubber's unique properties allow it to maintain flexibility and strength over a wide temperature range, making it suitable for both indoor and outdoor applications.