What is Chloroprene Rubber CAS 9010-98-4?

Chloroprene Rubber is a synthetic elastomer produced by polymerizing chloroprene, with the repeating unit (C4H5Cl)n. It is also known as polychloroprene or CR rubber and is commonly recognized by the trade name Neoprene.

Is Chloroprene Rubber the same as Neoprene?

Yes. Neoprene is the best-known trade name for polychloroprene. The terms chloroprene rubber, CR rubber, polychloroprene, and Neoprene generally refer to the same synthetic rubber family, although individual grades may differ in polymerization type and properties.

Which chloroprene rubber grades are most common?

Common grades include general-purpose, sulfur-modified, slow-crystallizing, precrosslinked, and adhesive-grade chloroprene rubber. General-purpose grades suit molded rubber goods, sulfur-modified grades offer easier breakdown and dynamic performance, and adhesive grades are optimized for solvent-based bonding systems.

Why is Chloroprene Rubber used in solvent-based adhesives?

Selected soluble chloroprene grades dissolve readily in organic solvents and develop fast tack, high cohesion, and good adhesion to rubber, metal, leather, and other substrates. Controlled crystallization also supports bond strength while allowing practical open time during application.

What weather, ozone, and oil resistance does Chloroprene Rubber provide?

Polychloroprene offers good resistance to weather, ozone, and aging, along with moderate to good oil resistance. These balanced properties make it suitable for hoses, belts, seals, gaskets, cable sheathing, and coated fabrics exposed to challenging service conditions.

What physical form and density are typical for Chloroprene Rubber?

It is normally supplied as light-colored solid bales, blocks, or chips with a typical density of about 1.20-1.25 g/cm3. The exact form depends on the selected grade and the supplier's packaging, but solid elastomer bales or chips are standard for compounding and adhesive production.

Chloroprene Rubber CAS 9010-98-4

Chloroprene Rubber (CR), commonly referred to as polychloroprene, is a general-purpose synthetic elastomer used across rubber processing industries where resistance to oil, weathering, ozone, and moderate heat is required. It is widely applied in molded rubber goods, industrial belts, wire and cable sheathing, and adhesive formulations.

In commercial supply, Chloroprene Rubber is typically provided as solid bales or chips suitable for compounding and further processing. Different grades are available depending on polymerization type and application direction (e.g., general molding, adhesives). Standard export packaging is used, with supporting documents such as COA, TDS, and SDS available for industrial procurement.

CAS: 9010-98-4
Synonyms: Polychloroprene; CR Rubber; Neoprene
Molecular Formula: (C4H5Cl)n
Grade: Industrial grades (e.g., general-purpose, adhesive grade, sulfur-modified types)
Package: Supplied in solid bale or block form with standard export packaging; packaging can be arranged based on shipment and handling requirements

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Packaging

4 Storage

Physicochemical Properties

Appearance	Light-colored solid bales or chips
Polymer Type	Polychloroprene (synthetic elastomer)
Density	Approx. 1.20–1.25 g/cm³
Glass Transition Temperature	Approx. -40°C
Solubility	Insoluble in water; soluble in selected organic solvents (for adhesive grades)
Oil Resistance	Moderate to good
Weather & Ozone Resistance	Good
Form	Solid elastomer (bale or chip)

Typical Applications

Industrial rubber products: Used in hoses, belts, gaskets, seals, and molded rubber parts requiring balanced mechanical and aging properties.
Adhesive formulations: Widely used in solvent-based adhesives for bonding rubber, metal, leather, and other substrates.
Wire and cable sheathing: Applied as protective insulation material due to its weather and flame resistance characteristics.
Coated fabrics and construction materials: Used in applications such as conveyor belts, coated textiles, and waterproofing systems.

For adjacent elastomer and adhesive-material pages, review Chlorosulfonated Polyethylene CSM and Polyurethane.

Packaging

Chloroprene Rubber is typically supplied in solid bale or block form, wrapped in protective film and packed in cartons or on pallets for handling and transportation. The packaging is designed to prevent contamination and maintain material integrity during storage and shipment.

For export supply, bales are usually palletized and secured to facilitate safe loading and unloading. Packaging configurations may vary depending on grade type and order quantity.

Storage

Store in a cool, dry, and well-ventilated warehouse away from direct sunlight and heat sources. Avoid prolonged exposure to high temperatures to prevent premature aging of the polymer. Keep packaging intact and avoid contamination with dust, oils, or incompatible materials.

FAQ - Technical & Supply Chain

Q:
What is Chloroprene Rubber CAS 9010-98-4?

A: Chloroprene Rubber is a synthetic elastomer produced by polymerizing chloroprene, with the repeating unit (C4H5Cl)n. It is also known as polychloroprene or CR rubber and is commonly recognized by the trade name Neoprene.
Q:
Is Chloroprene Rubber the same as Neoprene?

A: Yes. Neoprene is the best-known trade name for polychloroprene. The terms chloroprene rubber, CR rubber, polychloroprene, and Neoprene generally refer to the same synthetic rubber family, although individual grades may differ in polymerization type and properties.
Q:
Which chloroprene rubber grades are most common?

A: Common grades include general-purpose, sulfur-modified, slow-crystallizing, precrosslinked, and adhesive-grade chloroprene rubber. General-purpose grades suit molded rubber goods, sulfur-modified grades offer easier breakdown and dynamic performance, and adhesive grades are optimized for solvent-based bonding systems.
Q:
Why is Chloroprene Rubber used in solvent-based adhesives?

A: Selected soluble chloroprene grades dissolve readily in organic solvents and develop fast tack, high cohesion, and good adhesion to rubber, metal, leather, and other substrates. Controlled crystallization also supports bond strength while allowing practical open time during application.
Q:
What weather, ozone, and oil resistance does Chloroprene Rubber provide?

A: Polychloroprene offers good resistance to weather, ozone, and aging, along with moderate to good oil resistance. These balanced properties make it suitable for hoses, belts, seals, gaskets, cable sheathing, and coated fabrics exposed to challenging service conditions.
Q:
What physical form and density are typical for Chloroprene Rubber?

A: It is normally supplied as light-colored solid bales, blocks, or chips with a typical density of about 1.20-1.25 g/cm3. The exact form depends on the selected grade and the supplier's packaging, but solid elastomer bales or chips are standard for compounding and adhesive production.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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