Products Description
Polyisobutylene is a synthetic rubber or oily substance obtained by catalytic polymerization of isobutylene (2-methylpropene) monomer. Its molecular chain has a saturated structure, resulting in excellent chemical stability and superior heat resistance, aging resistance, ozone resistance, chemical resistance, and airtightness.
Specification
- Chemical Name: Polyisobutylene
- CAS No.: 9003-27-4
- Molecular Fomula:C4H8
- Molecular weight: 56.10632
- Appearance: Viscous transparent liquid
- Assay:99%
| Appearance | Viscous transparent liquid |
| Average number Molecular Weight | 1300 |
| Viscosity @ 100°C, Cst | 660-740 |
| Flash point, ºC, COC | 220-260 |
| Density @ 25°C, g/cm3 | 0.880-0.920 |
| Acid number, mgKOH/g | ≤0.01 |
| Pour point, ºC | -2ºC-8ºC |
| Water content, ppm | ≤50 |
| Color(Pt-Co Scale) | ≤45 |
Applications of Liquid PIB Polymer
Lubricant Additives
Used as a viscosity index improver and dispersant base material in engine oils and industrial lubricants.
Fuel Additives
Acts as a base for fuel detergents and deposit control additives.
Adhesives & Sealants
Provides flexibility and long-lasting bonding performance.
Rubber & Butyl Rubber Production
Improves elasticity and air tightness in inner tubes and sealing materials.
Waterproofing & Coating Industry
Enhances moisture resistance and durability.
Benefits Of PIB Polymer:
- Good oxidative stability
- Good emulsification, compatibility and fluidity
- High temperature decomposition
- No sulfur, nitrogen and oxygen
Packaging:
- 200kg steel drum
- IBC tank
- Bulk tank
Storage:
Store in a cool, dry place away from direct sunlight. Shelf life: 24 months under proper conditions.
Company Profile
TIANJIN GNEE BIOTECH CO., LTD. is a modern chemical enterprise integrating R&D, production, and supply.
Established in 2016, Gneebio specializes in chemical raw materials with global exports to 60+ countries. Products include PIB (various MW), butyl rubber, and halogenated butyl rubber.
FAQ
Is PIB polymer soluble in water?
No. Polyisobutylene liquid is insoluble in water but soluble in hydrocarbons such as mineral oils, aliphatic solvents, and aromatic solvents.
What is the difference between low molecular weight and high molecular weight PIB?
The main difference is viscosity and application:
- Low molecular weight PIB → Used in fuel additives, lubricant additives, tackifiers
- Medium molecular weight PIB → Used in adhesives and sealants
- High molecular weight PIB → Used in rubber and butyl rubber production
We can supply different molecular weight grades according to your requirement.
What is the typical appearance of liquid PIB?
Standard Grade PIB is typically:
- Colorless to light yellow
- Viscous liquid
- Odorless or slight hydrocarbon smell
Appearance may vary slightly depending on molecular weight.
What industries use Polyisobutylene liquid?
Polyisobutylene (PIB) is widely used in:
- Lubricant additive manufacturing
- Fuel detergent production
- Adhesive and sealant industry
- Butyl rubber production
- Waterproof coatings
- Electrical insulation materials
Can viscosity be customized?
Yes. As a professional PIB polymer supplier, we support customized viscosity and molecular weight grades to meet different formulation needs.
Please share your application and technical requirements for recommendation.
What is the shelf life of PIB polymer?
Under proper storage conditions (cool, dry place, sealed container), shelf life is typically 24 months.
What packaging options are available?
We offer:
- 200kg steel drum
- IBC tank
- Bulk tank container
Custom packaging is available for large volume orders.
How can I get TDS and quotation?
Please contact us with:
- Required molecular weight
- Application field
- Estimated order quantity
- Destination port
We will provide TDS, COA, and competitive FOB/CIF price accordingly.
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