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chlorinated polyvinyl chloride;cPVC

chlorinated polyvinyl chloride;cPVC

Due to its excellent properties, CPVC material is widely used in the following fields:

Chemical industry: CPVC can be used in chemical pipelines, valves, storage tanks, and other equipment. It can withstand high temperatures and corrosive media, and has good mechanical strength and pressure resistance.


CPVC products have the advantages of high-temperature resistance, corrosion resistance, high mechanical strength, and other characteristics, and can be widely used in chemical, construction, electrical, pharmaceutical, and other fields.

High-temperature resistance: Compared to ordinary PVC, CPVC has a higher heat distortion temperature and can work stably in environments above 90℃.

Corrosion resistance: CPVC material has good corrosion resistance and can be used in acidic and alkaline environments, as well as with chlorine ions, oxidants, and other corrosive media.

Mechanical strength: CPVC has high mechanical strength, good impact resistance, and pressure resistance, and can withstand certain external forces and pressures.

UV resistance: CPVC material is relatively stable against UV radiation and is not easily aged or discolored.

Good electrical insulation performance: CPVC material has good electrical insulation performance and can be used in electrical equipment and other fields.

Weldability: CPVC material can be connected by solvent welding or hot-melt welding, with high connection strength and less prone to water leakage.

Environmental protection: CPVC material does not contain harmful substances such as halogens and heavy metals and meets environmental protection requirements.

Improved heat resistance: The softening point temperature is 120°C when the chlorine content is 67%. Therefore, the heat resistance of CPVC is 20~40ºC higher than that of polyvinyl chloride, and CPVC products do not deform in boiling water.

Improved mechanical properties: At higher temperatures, some properties of CPVC such as tensile strength, flexural strength and hardness are improved compared to PVC, with higher rigidity. However, the impact performance of CPVC is worse than that of PVC and decreases with the increase of chlorine content.

Good corrosion resistance: resistant to acid and alkali at high temperature, not eroded by hydrochloric acid or hot chlorine steam, resistant to linear alkanes and oils, etc., with excellent corrosion resistance.

Good flame resistance: It has the characteristics of flame retardant and good air tightness. At high temperature, it has high insulation resistance and small dielectric loss, and has excellent flame resistance.

Good processing performance: CPVC can be used for the methods commonly used in rigid PVC processing, that is, extrusion, injection, calendering, turning, milling and drilling can be performed on PVC processing equipment, and the shrinkage rate of the product Low.

Other properties: Due to the high chlorine content, CPVC does not burn at all and has good flame resistance. CPVC also has good electrical insulation properties, especially high insulation resistance at high temperatures, low dielectric loss, and low thermal conductivity, which can be used in the production of various insulating materials. In terms of chemical properties, CPVC has the same properties as PVC, and can resist acid and alkali at high temperature. CPVC is not attacked by hydrochloric acid or hot hydrogen vapor, and is also resistant to straight chain hydrocarbons and oils.

CPVC extrusion type
ExteriorWhite powder
Chlorine content%67.0±0.5
Sieve rate % (through 0.355mm sieve)≥99
Apparent density g/ml≥0.50
Volatile %≤0.3
CPVC injection molding
ExteriorWhite powder
Chlorine content%66.5±0.5
Sieve rate % (through 0.355mm sieve)≥99
Apparent density g/ml≥0.55
Volatile %≤0.3


The use of CPVC is very extensive, involving almost all walks of life. Mainly used to make pipes, hot and cold water pipes, chemical pipes, oil field transportation pipes; plates and sheets, foam materials, flame retardant materials, composite materials, modification of vinyl fibers, coatings and adhesives, electrical insulation Materials, injection molding.



Packing form: 25KG/bag

We provide free samples of 0.5-1kg, you only need to pay the freight, please feel free to contact us if you need it.


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