Chloroprene rubber (CR)

Our rubber materials use for application has imported from OHJI (Japan) manufacture. We provide rubber sheet, adhesive, materials and the supervisor which will be best suited for your needs.

Characteristics of Chloroprene Rubber (CR)

Chloroprene Rubber
Weather
Heat o
Low Temperature
Acid o
Alkali
Abrasion
Vapor Permeability o
Shock o


Excellent
o
Good

Not Good
×
Bad

Chemical Resistance of Rubber Lining

Chemical resistance are determined according to test results and actual long-term performance. And accurate material selection requires careful consideration in terms of operating conditions and specifications of equipment.

Therefore, please consult with us in advance for selection of rubber material against your chemical.

Inorganic Acids

Chemical  

Formula

Conc. (%)

Chloroprene Rubber

C-6

RT 90°C
Sulfuric Acid H2SO4 10  O    ∆
Sulfuric Acid H2SO4 30  O    ∆
Sulfuric Acid H2SO4 50  O     ∆
Sulfuric Acid H2SO4 70  ∆  X
Hydrochloric Acid HCl 10  ∆  X
Hydrochloric Acid HCl 35  X  X
Nitric Acid HNO3 1  X  X
Sulfurous Acid H2SO3 0.5  O  X
Phosphoric Acid H3PO4  O O
Hydrofluoric Acid HF 1  O X
Hydrofluoric Acid HF 48  X  X
Carbonic Acid H2CO3  O  O
Chlorine Water Cl2 satu  X X
Chlorine Gas Cl2 wet  X  X
Hydrobromic Acid HBr 40  ∆  X
Hydrogen Sulfid Water H2S O    ∆
Chromic Acid H2CrO4 1  X X

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Inorganic Alkalis

 Chemical Formula Conc. (%) Chloroprene Rubber

C-6

RT 90°C
Caustic Soda NaOH 48 O  O
Caustic Potash KOH 25  O O
Aqua Ammonia NH4OH 28  X

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Inorganic Salts Solutions

 Chemical Formula Conc (%) Chloroprene Rubber

C-6

RT 90°C
Sodium Hypochlorite NaClO  X X
Calcium Hypochlorite Ca(ClO)2  X
Sodium Chlorate NaClO3 O O
Potassium Chlorate KClO3  O  O
Sodium Chloride NaCl  O  O
Calcium Chloride CaCl2  O O
Zinc Chloride ZnCl2  O  O
Ammonium Chloride NH4Cl  O  O
Sodium Sulfate Na2SO4  O  O
Sodium Bicarbonate NaHCO3  O  O
Potassium Bichromate K2Cr2O7  O  ∆
Sodium Sulfite Na2SO3  O  O
Potassium Sulfite K2SO3  O  O
Sodium Sulfide Na2S  O  O
Potassium Sulfide K2S  O  O
Sodium Thiosulfate Na2S2O3  O  O
Sodium Phosphate Na3PO4  O O
Potassium Chloride KCl  O O
Ammonium Carbonate (NH4)2CO3  O  O
Ferric Chloride FeCl3  O  O
Ammonium Sulfate (NH4)2SO4 O  O
Stannous Chloride SnCl2  O  O
Chromium Chloride CrCl2  O  O
Nickel Sulfate NiSO4  O  O
Silver Nitrate AgNO3  O
Aluminum Sulfate Al2(SO4)3  O  O
Sodium Silicate Na2O . SiO2  O  O
Sodium Aluminate NaAlO2  O  O
Magnesium Hydroxide Mg(OH)2  O  O
PAC [Al2(OH)nCl6-n]m  O  O

  O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Inorganic Acids

Chemical Formula Conc (%) Chloroprene Rubber

C-6

RT 90°C
Acetic Acid CH3COOH 10 X X
Glacial Acetic Acid CH3COOH 10
Formic Acid HCOOH 90 O
Oxalic Acid (COOH)2 20  O
Butyric Acid CH3CH2CH2COOH 100
Tartaric Acid (CH OH COOH)2 50 O O
Lactic Acid CH3CH(OH)COOH 25

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Organic Compounds

Chemical Formula Conc. (%) Chloroprene Rubber

C-6

RT 90°C
Acetone CH3COCH3  X
Methanol CH3OH O  ∆
Ethanol C2H5OH O  ∆
n-Propylalcohol C3H7OH O  ∆
n-Butanol C4H9OH O
Formaldehyde HCHO  O X
Glycerin C3H5(OH)3 O O
Ethylene Glycol (CH2OH)2 O  ∆
Triethanolamine N(CH2CH2OH)3  O  ∆
Glucose C6H12O6  O

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Description

Chloroprene Rubber (CR) or Neoprene

Our rubber materials use for application has imported from OHJI (Japan) manufacture. We provide rubber sheet, adhesive, materials and the supervisor which will be best suited for your needs.

General Application Chloroprene Rubber (CR)

Application good for weather, ozone and oil resistance. Well used for sea water equipment

OHJI Material

Characteristics

General Application

Curing Method

Hardness

Autoclave

Open steam

C-5

Better performance for workability of lining application.

Seawater pipe

Water box condenser

62 ± 7

Type A

C-55

Self vulcanization type of CR

Vulcanization with operating temperature.

NaOH storage, PAC, CaCl

Wastewater treatment equipment

62 ± 7

Type A

C-55F

Food grade of self vulcanization type of CRStorage tank for NaOH as a food additive

62 ± 7

Type A

C-6

Standard grade of CR

Except oxidizing chemical resistance, heat and oil resistance, also excellent in ozone resistance.

Can be applied for coexistent with hydrofluoric acid such as phosphoric acid production.

Phosphoric acid production related equipment

Seawater pipe

Water box condenser

62 ± 7

Type A

H-411

Certified with standard of water service (JIS K 6353-1997)Tap water piping

 

62 ±7

Type A

* With regard to service condition, in the case of food-related, C-55F is certified by the Japan Ministry of Welfare No.85.

OHJI rubber sheeting

● Accurate and uniform thickness

● No air pocket in sheet

● Better and longer corrosion perfomance

● Best sheet method rubber lining

Feature of rubber lining

● Chemical resistance

● Shocket restiance

● Abrasion restiance 

● Pressure restiance

● Elastricity

Advantage of rubber lining

● Reliable application

● Accurate lining thickness

● Excellence bonding

● Defect detection

● Able to maintenance

Characteristics of Chloroprene Rubber (CR)

Chloroprene Rubber
Weather
Heat o
Low Temperature
Acid o
Alkali
Abrasion
Vapor Permeability o
Shock o


Excellent
o
Good

Not Good
×
Bad

Chemical Resistance of Rubber Lining

Chemical resistance are determined according to test results and actual long-term performance. And accurate material selection requires careful consideration in terms of operating conditions and specifications of equipment.

Therefore, please consult with us in advance for selection of rubber material against your chemical.

Inorganic Acids

Chemical  

Formula

Conc. (%)

Chloroprene Rubber

C-6

RT 90°C
Sulfuric Acid H2SO4 10  O    ∆
Sulfuric Acid H2SO4 30  O    ∆
Sulfuric Acid H2SO4 50  O     ∆
Sulfuric Acid H2SO4 70  ∆  X
Hydrochloric Acid HCl 10  ∆  X
Hydrochloric Acid HCl 35  X  X
Nitric Acid HNO3 1  X  X
Sulfurous Acid H2SO3 0.5  O  X
Phosphoric Acid H3PO4  O O
Hydrofluoric Acid HF 1  O X
Hydrofluoric Acid HF 48  X  X
Carbonic Acid H2CO3  O  O
Chlorine Water Cl2 satu  X X
Chlorine Gas Cl2 wet  X  X
Hydrobromic Acid HBr 40  ∆  X
Hydrogen Sulfid Water H2S O    ∆
Chromic Acid H2CrO4 1  X X

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Inorganic Alkalis

 Chemical Formula Conc. (%) Chloroprene Rubber

C-6

RT 90°C
Caustic Soda NaOH 48 O  O
Caustic Potash KOH 25  O O
Aqua Ammonia NH4OH 28  X

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Inorganic Salts Solutions

 Chemical Formula Conc (%) Chloroprene Rubber

C-6

RT 90°C
Sodium Hypochlorite NaClO  X X
Calcium Hypochlorite Ca(ClO)2  X
Sodium Chlorate NaClO3 O O
Potassium Chlorate KClO3  O  O
Sodium Chloride NaCl  O  O
Calcium Chloride CaCl2  O O
Zinc Chloride ZnCl2  O  O
Ammonium Chloride NH4Cl  O  O
Sodium Sulfate Na2SO4  O  O
Sodium Bicarbonate NaHCO3  O  O
Potassium Bichromate K2Cr2O7  O  ∆
Sodium Sulfite Na2SO3  O  O
Potassium Sulfite K2SO3  O  O
Sodium Sulfide Na2S  O  O
Potassium Sulfide K2S  O  O
Sodium Thiosulfate Na2S2O3  O  O
Sodium Phosphate Na3PO4  O O
Potassium Chloride KCl  O O
Ammonium Carbonate (NH4)2CO3  O  O
Ferric Chloride FeCl3  O  O
Ammonium Sulfate (NH4)2SO4 O  O
Stannous Chloride SnCl2  O  O
Chromium Chloride CrCl2  O  O
Nickel Sulfate NiSO4  O  O
Silver Nitrate AgNO3  O
Aluminum Sulfate Al2(SO4)3  O  O
Sodium Silicate Na2O . SiO2  O  O
Sodium Aluminate NaAlO2  O  O
Magnesium Hydroxide Mg(OH)2  O  O
PAC [Al2(OH)nCl6-n]m  O  O

  O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Inorganic Acids

Chemical Formula Conc (%) Chloroprene Rubber

C-6

RT 90°C
Acetic Acid CH3COOH 10 X X
Glacial Acetic Acid CH3COOH 10
Formic Acid HCOOH 90 O
Oxalic Acid (COOH)2 20  O
Butyric Acid CH3CH2CH2COOH 100
Tartaric Acid (CH OH COOH)2 50 O O
Lactic Acid CH3CH(OH)COOH 25

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

Organic Compounds

Chemical Formula Conc. (%) Chloroprene Rubber

C-6

RT 90°C
Acetone CH3COCH3  X
Methanol CH3OH O  ∆
Ethanol C2H5OH O  ∆
n-Propylalcohol C3H7OH O  ∆
n-Butanol C4H9OH O
Formaldehyde HCHO  O X
Glycerin C3H5(OH)3 O O
Ethylene Glycol (CH2OH)2 O  ∆
Triethanolamine N(CH2CH2OH)3  O  ∆
Glucose C6H12O6  O

O: Satisfactory        ∆: Marginal      X: Unsatisfactory

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