CAS 9010-98-4 Chloroprene Rubber

Product Name: Polychloroprene / Neoprene/ Chloroprene Rubber
Other Name: Medium Crystallization Polychloroprene Rubber
CAS No.: 9010-98-4
Appearance: Creamy beige solid lumps coated with talcum powder as anti-blocking agent, free of foreign impurities and scorched particles.
Raw rubber density: 1.23 g/cm³

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Chloroprene Rubber

1. Product Overview

This sulfur-xanthate modified polychloroprene features a moderate crystallization rate, delivering an optimal balance between processing performance and self-reinforcing capacity. It is a universal molding-grade chloroprene rubber widely applicable to most types of industrial rubber articles.

Product Name: Polychloroprene / Neoprene/ Chloroprene Rubber

Other Name: Medium Crystallization Polychloroprene Rubber

CAS No.: 9010-98-4

Appearance: Creamy beige solid lumps coated with talcum powder as anti-blocking agent, free of foreign impurities and scorched particles.

Raw rubber density: 1.23 g/cm³

Equivalent overseas grades: DuPont Neoprene W / WM1, Denka M-40, Lanxess Baypren 210

Chloroprene Rubber (1).jpg

2. Raw Rubber Technical Specifications

Test condition: ML(1+4) @ 100℃

Test Item	CR2321	CR2322	CR2323	CR2324	Test Standard
Mooney Viscosity	32–45	46–60	61–75	76–90	GB/T 1232.1
Minimum Mooney Scorch MSt5, min	25	25	25	25	GB/T 1233
Max. Volatile Content, wt%	1.2	1.2	1.2	1.2	Oven drying method
Max. Ash Content, wt%	1.0	1.0	1.0	1.0	Ignition gravimetry
Crystallization Rate	Medium (18–28% crystallinity after 72h @23℃)	Visual aging test

3. Cured Rubber Mechanical Properties (Standard Sulfur Cure Formula)

Property	Typical Value	Test Condition
Tensile Strength	≥26 MPa	GB/T 528
500% Modulus	7.5–11 MPa	Ambient temperature
Elongation at Break	≥500%	Standard dumbbell specimen
Tear Strength	≥42 kN/m	GB/T 529
Compression Set (70℃ ×22h)	≤22%	25% compression ratio

4. Main Applications

Automotive sector: sealing gaskets, dust boots, rubber hoses, vibration isolation components

Power transmission: V-belts, timing belts, heavy-duty conveyor belts

Electrical applications: cable outer sheaths, wire insulation layers

General industrial supplies: rubber rollers, tank lining sheets, waterproof membranes, diving rubber accessories, outer protective covers for rubber hoses

Chloroprene Rubber .png

5. Packaging & Storage Guidelines

16MT/1*20'FCL with pallet;
17.5MT/1*20'FCL without pallet

Packaging: 25kg net weight composite woven bags lined with inner PE film

Storage requirements: Keep in cool, dry and well-ventilated warehouses; shield from direct sunlight and high ambient heat; stacking height limited to maximum 10 layers

Shelf life: 12 months when stored at temperatures below 25℃

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