High Performance Neoprene Rubber - Flame Retardant for Seals & Gaskets, Bulk Pric
- Model
- CR2441,CR2442,CR2321,CR2322 etc.
Item specifics
- Categories
- Polychloroprene Rubber
- Product name
- Polychloroprene Rubber
- Color
- white
- Packing
- 25kg PP/PE neutral bag
- Loading
- 20-27mt/20fcl
- OEM Packing
- accepted
- CAS No.
- 9010-98-4
- Delivery time
- within 20 days after payment receipt
- Free sample
- yes
Review
Description
What is Polychloroprene Rubber
Polychloroprene Rubber, best known by its trade name Neoprene (originally from DuPont), is a synthetic rubber produced by the polymerization of chloroprene (2-chloro-1,3-butadiene).
Polychloroprene Rubber
1.Resistance to Environmental Degradation
Ozone & Weathering: It has excellent resistance to ozone cracking and UV radiation from sunlight, making it ideal for outdoor applications (e.g., bridge mounts, exterior seals).
Aging: It maintains its physical properties over long periods, resisting hardening and embrittlement.
Moderate Heat: It performs continuously at temperatures up to ~90-100°C (~200°F).
2. Inherent Flame Retardancy: The chlorine content also makes Polychloroprene self-extinguishing.
3. Good Resistance to Industrial Fluids
Oils & Greases: It has good resistance to petroleum-based oils, greases, and hydraulic fluids (though not as good as Nitrile Rubber for full oil immersion).
Chemicals: It resists many acids, bases, and other chemicals, making it suitable for seals and hoses in chemical processing.
Polychloroprene Rubber
1. Automotive Manufacturing
Application:
Seals & Gaskets: Used in brake systems, steering components, and engine gaskets due to superior oil and heat resistance (withstands up to 120°C).
Vibration Damping: Applied in motor mounts and suspension bushings to reduce noise and vibration.
Key Role:
Oil & Fuel Resistance: Maintains elasticity and sealing performance even after prolonged exposure to oils and fuels, extending component lifespan by 30-40%.
Weather Resistance: Protects against ozone and UV degradation, ideal for outdoor automotive parts.
2. Construction & Infrastructure
Application:
Bridge Bearings: Serves as cushioning pads in bridges to absorb seismic movement and thermal expansion.
Waterproofing Membranes: Used in roofing and tunnel linings for exceptional waterproofing and weather resistance.
Key Role:
Load Distribution: Evenly distributes heavy loads in structural bearings, reducing stress on concrete/steel structures.
Long-Term Durability: Resists weathering, ozone, and temperature fluctuations (-40°C to 100°C), ensuring 20+ years of service life.
Polychloroprene Rubber：
| Product: | Polychloroprene Rubber | |
| CAS No.: | 9010-98-4 | |
| Molecular Formula: | C4H5Cl | |
| Molecular Weight： | 88.5365 | |
HS CODE: | 40024910 | |
Properties: | white or beige chips | |
Specifications： | ||
Items | Unit | Specifications |
Viscosity in 5% toluene solution, mpa·s | 40 | 13-24 |
CR2441 | 25-34 | |
CR2442 | 35-53 | |
CR2443 | 54-75 | |
CR2444 | 76-115 | |
CR244A | 116-140 | |
CR244A | 141-400 | |
Peel Strength, ≥N/m | 90 | |
Volatile, ≤% | 1.2 | |
Appearance | Milk white chips | |
Product Display：
Polychloroprene Rubber
CR Rubber
Chloroprene Rubber
Application
1. Electrical & Electronics
Cable Insulation: Provides flame-retardant insulation for power cables and transformer components.
Gaskets & Enclosures: Used in electrical cabinets and IoT device housings for dust/water resistance (IP67 rating).
Flame Retardancy: Self-extinguishing properties (UL94 V-0 rating) prevent fire propagation in electrical systems.
Static Resistance: Protects sensitive electronics from electrostatic discharge (ESD).
2. Aquatic Sports & Protective Gear
Diving Suits: Closed-cell foam neoprene traps body heat, keeping divers warm in cold water (5-15°C).
Sports Equipment: Used in knee/elbow braces and wetsuits for flexibility and impact protection.
Thermal Insulation: Maintains body temperature in water, reducing heat loss by 50% compared to natural rubber.
3. Industrial Sealing & Adhesives
Pipe Seals: Resists chemical corrosion in industrial pipelines carrying acids, alkalis, and solvents.
High-Strength Adhesives: Bonds metals, plastics, and rubber in automotive and aerospace assemblies.
Chemical Resistance: Performs reliably in environments with oils, solvents, and mild acids (pH 3-11).
Adhesive Strength: Forms permanent bonds with tensile strength ≥12 MPa, outperforming epoxy in flexible applications.
Applications & Solutions
Automotive Manufacturing
Fuel-Resistant Rubber Parts
Waterproof membrane
It has a good resistance to acidic substances in rainwater
Electrical & Electronics
retardant insulation for power cables and transformer components.
Sealing ring
It can withstand repeated bending and stretching and is not easy to break.
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FAQ
What is Polychloroprene Rubber?
Polychloroprene Rubber is a synthetic rubber produced by polymerizing chloroprene. It is best known by the trade name Neoprene, originally from DuPont. It is valued for its good stability and flexibility over a wide temperature range and its resistance to oil, weather, and chemicals.
What does "CR" stand for?
CR is the ASTM (American Society for Testing and Materials) standard designation for polychloroprene rubber, derived from its chemical name "Chloroprene Rubber".
What are the key properties of Neoprene?
Excellent resistance to ozone, sunlight (UV), and weathering.
Good resistance to oils, greases, and many chemicals.
Inherent flame retardancy; it is self-extinguishing.
Good mechanical properties: tensile strength, tear resistance, and elasticity.
Performs well in temperatures from approximately -40°C to +100°C (-40°F to +212°F).