Polyisobutylene (PIB) and Butyl Rubber are both synthetic polymers widely used in industrial and consumer products. While they share a similar base material, their structure and applications differ.
1. Basic Composition
- Polyisobutylene (PIB): A pure polymer made from isobutylene monomers only.
- Butyl Rubber: A copolymer of isobutylene (98–99%) and a small amount of isoprene (1–2%).
2. Structure and Flexibility
- PIB: Has a regular, saturated molecular structure, making it soft, sticky, and impermeable to gases.
- Butyl Rubber: The added isoprene introduces unsaturation points, making the rubber curable (vulcanizable) and more elastic.
3. Physical Properties
Poly isobutylene:
- Non-curable
- Excellent gas barrier
- Very tacky (sticky) texture
Butyl Rubber:
- Can be vulcanized for strength
- Durable and stretchable
- Resistant to weathering, ozone, and chemicals
4. Applications
Poly(Isobutylene):
- Used in adhesives, lubricants, sealants, chewing gum base, and gas barriers
Butyl Rubber:
- Ideal for inner tubes, tires, seals, pharmaceutical stoppers, and protective clothing
5. Performance Difference
- Polyisobutene is great for non-curing, sealing, and sticky applications.
- Butyl Rubber is preferred for durable, elastic, and weather-resistant products.
We export polyisobutylene all year round, can ensure that the product quality guarantee to customers.We provide Commerical Invoice, Packing List, Bill of loading, COA.Are you interested in this product? Click below to inquire now and get exclusive quotes and samples! We will provide you with the highest quality Acetic acid liquid.
Gneebio is an enterprise specializing in the research and development, production and sales of chemicals. Our factory was established in 2016 and is located in Henan Province, covering an area of 3,600 square meters. Our team consists of more than 200 people. Over the years, the entire team has continued to improve to meet the actual needs of customers and has now become one of the leading chemical product exporters in Henan Province, China.
Our popular products include Polyisobutylene (PIB), alcohols (isopropyl alcohol, 1-butanol, ethanol, etc.), aromatics (benzene, toluene, styrene, etc.), and daily chemical products (Didecylmethylamine, Lauryl dimethyl amine oxide 30%, Didecyl dimethyl ammonium chloride, etc.). We hope to establish long-term and mutually beneficial cooperative relationships with more friends in the future and provide customers with the best products and services.
Our Advantages
1). Small batch shipment and sub-packaging is available.
2). Provide COA, MSDS, Health Certificate and Origin Certificate.
3). Quality first, service best.
Email: sales@gneebio.com