Csm 40 and csm-45-technical-data-sheet

WESTMOONINT (HK) CORPORATION LIMITED
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CSM-40 and CSM-45 Technical Data Sheet

General Introduction
ASTM D-2000 Classification: CE
Chemical Definition: Chlorosulfonated-Polyethylene
Abbreviation: CSM, CSP, CSPE
Formula: {[(CH2) n1CHCl (CH2) n2] n3cCHSO2Cl} n

Chlorosulfonated-Polyethylene Properties
Chlorosulfonated-Polyethylene (CSM) is a 3-5mm, white to light yellow or
yellow-brown tasteless chips, which is similar to rubber but has its own features. It
dissolves in aromatic hydrocarbons and chlorine, insoluble in ketones, lipids, and
cyclic hydrocarbons, water, alcohol and mineral oil, vegetable oil etc.

Chlorosulfonated-Polyethylene (CSM) is non-toxic, in explosive. It offers excellent
properties of ozone resistance, weather ageing resistance, chemical resistance, good
physical and mechanical performance, heat ageing resistance and low temperature
performance, oil resistance, resistance to flammability, abrasion resistance and
electrical insulation, etc.

Figure 1 shows the basic structure of the polyethylene chain that the chlorine and
sulfur atoms modify to form cross-linked CSPE molecules.

Figure 1

WestMoonint provides CSM-40 and CSM-45 grades are separately similar with
Hypalon-40 and Hyplaon-45, which were trademarked by DuPont.

Chlorosulfonated-Polyethylene Specification
Type Volatile Chlorine % Sulfur Mooney Viscosity ML1+4， Tensile Strength Elongation
≤% content% 100℃ Mpa≥ %≥

40 1.0 33～37 0.8～1.2 40～60 25.0 450

45 1.0 23~27 0.8~ 1.2 25~40 25.0 450

Important Announcements: The any depictions in this paper can not be regarded as the abduction of infringing patents. Seller

has no any responsibilities for the statement clingers about products, the infringed pledges and any losses on any occasions. The

data and the results about products come from the controlled or lab works, and buyers must validate those data and results about

products according to their own applying conditions.

Address: ROOM2112, BLOCK C OF JINSHA WINERA PLAZA, NO.1 SHUJIN RD, CHENGDU, 610091, SICHUAN, CHINA
Tel: 86-028-61311272 Fax: 86-028-61311273
Web: www.westmoonint.com E-mail: info@westmoonint.com

2 Chlorosulfonated-Polyethylene Images

Chlorosulfonated-Polyethylene Physical & Mechanical Properties
Durometer or Hardness Range 45 – 95 Shore A
Tensile Strength Range 1,000 – 3,000 PSI
Elongation (Range %) 100 % – 800 %
Abrasion Resistance Good to Excellent
Adhesion to Metal Excellent
Adhesion to Rigid Materials Excellent
Compression Set Poor to Good
Flex Cracking Resistance Fair to Good
Impact Resistance Good to Very Good
Resilience / Rebound Fair to Good
Tear Resistance Fair to Good
Vibration Dampening Fair to Good
Chlorosulfonated-Polyethylene Chemical Resistance
Acids, Dilute Excellent
Acids, Concentrated Good to Excellent
Acids, Organic (Dilute) Excellent
Acids, Organic (Concentrated) Good
Acids, Inorganic Good to Excellent
Chlorosulfonated-Polyethylene Chemical Resistance
Alcohols Excellent
Aldehydes Poor to Fair
Alkalies, Dilute Good to Excellent
Alkalies, Concentrated Good to Excellent
Amines Poor
Animal & Vegetable Oils Good
Brake Fluids, Non-Petroleum Based Fair
Diester Oils Poor
Esters, Alkyl Phosphate Poor
Esters, Aryl Pho Fair

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3 Fuel, Aliphatic Hydrocarbon Poor
Fuel, Aromatic Hydrocarbon Fair to Good
Fuel, Extended (Oxygenated) Fair
Halogenated Solvents Fair
Hydrocarbon, Halogenated Poor
Ketones Poor
Lacquer Solvents Poor
LP Gases & Fuel Oils Poor
Mineral Oils Good
Oil Resistance Good to Very Good
Petroleum Aromatic Fair to Good
Petroleum Non-Aromatic Poor
Refrigerant Ammonia Fair
Refrigerant Halofluorocarbons R-11, R-12, R-13
Refrigerant Halofluorocarbons w/ Oil R-11, R-12, R-22
Silicone Oil Excellent
Solvent Resistance Fair to Good
Chlorosulfonated-Polyethylene Thermal Properties
Low Temperature Range -60º to - 40º
F F
Minimum for Continuous Use (Static) - 65ºF
Brittle Point - 70ºF
High Temperature Range + 225º to + 275º
F F
Maximum for Continuous Use (Static) + 275ºF
Chlorosulfonated-Polyethylene Environmental Performance
Colorability Excellent
Flame Resistance Good to Excellent
Gas Permeability Good to Excellent
Odor Good
Ozone Resistance Excellent
Oxidation Resistance Excellent
Radiation Resistance Poor to Good
Steam Resistance Poor to Good
Sunlight Resistance Excellent
Taste Retention Fair to Good
Weather Resistance Excellent
Water Resistance Good

Chlorosulfonated-Polyethylene Application

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Chlorosulfonated-polyethylene is used in a number of applications. Variety of
products are made using Chlorosulfonated-polyethylene. Some of the popular uses
and applications of Hypalon or chlorosulfonated polyethylene (CSM) are as follows:
i. Adhesives
ii. Insulation
iii. Shoe soles
iv. Automotive components like high-temperature timing belts, power steering
v. Coatings
vi. Flexible tubes
vii. Seals
viii. Flexible magnetic binders
ix. Industrial products such as hose, rolls, seals, gaskets, diaphragms and lining
for chemical processing equipment
x. Jacketing and insulation for wire and cable
xi. Liners and covers for portable water reservoirs
xii. Variety of protective and decorative coatings

Packaging
Chlorosulfonated-polyethylene are stored in polyethylene woven bags, and each of
them can contain 25 KG in net weight.
Storage
Chlorosulfonated-polyethylene does not belong to the inflammable and explosive
dangerous goods. CSM should be stored in a cool, dry place. Storage and work areas
should be monitored for carbon tetrachloride to assure that the PEL is not exceeded.

Shelf life
Minimum 2 year’s shelf life in original packaging

Issued by WESTMOONINT (HK) CORPORATION LIMITED in 2010
Version 2.11

Tel: 86-028-61311272 Fax: 86-028-61311273

Csm 40 and csm-45-technical-data-sheet

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