pvc sg5

PVC SG5 is a standard-viscosity grade of polyvinyl chloride. It has a balanced molecular weight, providing good mechanical strength and rigidity. PVC SG5 is known for its excellent chemical resistance to acids, bases, and salts. It also offers good thermal stability and high plasticity, making it versatile for various applications. Its balanced properties ensure durability and reliability under different environmental conditions.

  • Molecular Formula : (C₂H₃Cl)ₙ
  • CAS Number : 9002-86-2
  • Grade : Tech Grade
  • HS Code :3904109090

What Does PVC Resin -SG5 Grade Mean?

PVC Resin SG5 is a standard grade of polyvinyl chloride characterized by its balanced molecular weight and viscosity. This grade offers an ideal combination of strength, rigidity, and flexibility, making it highly versatile for various industrial applications.

PVC SG5 is widely used in the manufacturing of pipes, fittings, panels, calendaring products, injection molding, profiles, and sandals. Its balanced properties ensure durability and reliability under different conditions, making it a popular choice for both rigid and flexible PVC products. The standard viscosity of SG5 allows for efficient processing and consistent performance in a wide range of applications.

Technical Parameters

ItemsSpecifications:Test ResultsUnit
K Value66-6867%
Viscosity Number107-118112ml/g
Impurity of ion number30max25%
Purity of volatiles including water0.40max0.14%
Apparent density0.48min0.52g/ml
Residue on sieve ,0.25mm sieve2.0max0.81%
Residue on sieve ,0.063mm sieve95min98%
Mesh number per/400cm220max16%
100Plasticizer absorption of PVC of 100g19min20%
whiteness(160℃,10min later )78min84%
Water extract conductivity--S/m
Residual chlorethylene5max4ppm

Safety Is An Important Guarantee

Safety is our top priority. 

To ensure your safety while using Caustic Soda Pearls, please be sure to download and carefully read the accompanying Material Safety Data Sheet (MSDS).

This document provides detailed safety guidelines, including how to handle potential hazards, accident response, and proper storage methods. It will help you understand and safely use Caustic Soda Pearls, ensuring personal safety and environmental protection.


PVC is typically packaged in 25kg bags, which come in two types of materials: standard and environmentally friendly.

When transporting PVC in containers, a small container can hold up to 17 tons, while a high cube container can accommodate up to 28 tons.

Support customize the packaging materials



The main differences between PVC Resin SG3, SG5, and SG8 are in their molecular weight and viscosity, which affect their processing and application:

  • SG3: This grade has the lowest molecular weight and is characterized by high plasticity and low viscosity. It is suitable for soft and flexible applications such as plastic films, artificial leather, and electrical insulation.
  • SG5: This is a medium molecular weight grade with balanced properties, making it the most versatile. It is commonly used in a wide range of applications, including pipes, fittings, and rigid profiles. SG5 offers good processability and mechanical properties.
  • SG8: This grade has the highest molecular weight, resulting in high rigidity and strength. It is ideal for applications requiring robust mechanical properties, such as pipes, fittings, and injection-molded products. SG8 provides excellent durability and chemical resistance.

 PVC Resin – SG5 is a medium molecular weight grade of PVC resin, known for its balanced properties and versatility. Its primary applications include:

  • Pipes and Fittings: Commonly used for producing durable pipes and fittings in plumbing and industrial applications.
  • Rigid Profiles: Ideal for creating window and door frames, as well as other rigid profiles used in construction.
  • Sheets and Panels: Used in manufacturing rigid PVC sheets and panels for construction, packaging, and signage.
  • Injection Molding: Suitable for a variety of molded products, providing good mechanical properties and ease of processing.

PVC Resin – SG5 exhibits several important properties that make it suitable for a wide range of applications:

  • Balanced Mechanical Properties: Offers a good balance of rigidity and flexibility, making it versatile for various applications.
  • Good Processability: Easy to process using standard PVC processing techniques such as extrusion and injection molding.
  • Chemical Resistance: Provides excellent resistance to a wide range of chemicals, ensuring product durability.
  • Thermal Stability: Maintains stability and performance across a broad temperature range, suitable for both indoor and outdoor applications.

Contact us for a quote

At your service 24/7