Description
Comprehensive Introduction to PVC S6532 – A Reliable Choice for Industrial Extrusion
Producer: Arvand Petrochemical Company
PVC S6532 is a suspension grade (Suspension PVC) specifically designed for extrusion processes. Due to its favorable rheological behavior, it has become one of the most widely used grades in the production of construction products. With a balanced K-Value (typically 65) and controlled particle size distribution, it ensures a stable and uniform melt flow. This combination enables manufacturers to produce high-quality parts with excellent surface finish and adequate strength, while minimizing property losses.
Key Technical Features
🔧 High Processability in Extrusion
The uniform PVC S6532 granules melt quickly in the extruder, forming a homogeneous molten phase. This prevents streaks and voids in the extruded product and allows precise adjustment of pressure and speed.
🔥 Acceptable Thermal Resistance
The thermal stability of this grade during processing significantly reduces the need for high levels of thermal stabilizers and prevents discoloration.
⚙️ Good Mechanical Properties
Products made from this grade show relatively high resistance to bending and compressive stresses, and maintain dimensional stability without cracking or brittleness during long-term use.
🛡️ Chemical Resistance
PVC S6532 is resistant to many mild chemicals (acids, alkalis, salt solutions, and oils), making it a suitable choice for industrial parts.
Main Applications
| Application | Description |
|---|---|
| Water and Sewage Pipes | Suitable for low to medium pressure, applicable in urban and building networks. |
| Construction Profiles | Production of PVC doors and windows with smooth surface and high strength. |
| Cable Ducts | Protecting electrical and telecom cables, with resistance to fire and corrosion. |
Comparison with Similar Grades
In the extrusion industry, various PVC grades are available under names like S65, S6532, S700, and S57. Their main differences lie in viscosity, particle size distribution, and processing behavior at extrusion temperatures.
| Grade | K-Value | Distinctive Feature | Suitable Application |
|---|---|---|---|
| S65 | 65 | General grade with moderate stability | Standard pipes / Compounding |
| S6532 | 65 | Uniform melt flow and better colorability | Construction profiles & ducts |
| S700 | 70 | Higher viscosity – higher strength | Thick or high-pressure parts |
| S57 | 57 | Faster melting – lower viscosity | Films & thin products |
Compared to S65, grade S6532 provides more uniform melting behavior and less discoloration. Compared to S700, it is easier to process and suitable for high-speed extrusion without major process parameter adjustments. While S57 is mainly used for thin products, S6532 shows optimal performance in semi-thick parts.
Key Additive Selection Notes for PVC S6532
- Use tin-based or calcium/zinc stabilizers to maintain color stability during extrusion.
- Adding external lubricants (such as paraffin or polyethylene wax) improves melt exit from the die.
- For drinking water pipes, food-grade additives must be used to comply with health standards.
Conclusion
PVC Grade S6532, with its balanced combination of flowability, thermal stability, and strength, is among the best options for producing extruded products in the construction and industrial sectors. Thanks to its high compatibility with stabilizers and lubricants, it enables manufacturers to produce consistent, high-quality parts. Moreover, due to its excellent adaptability to existing extrusion equipment in the Iranian market, it can be used without significant adjustments to processing parameters.
Reviews
There are no reviews yet.