1. Stable Processing Performance and Wide Applicability
PVC SG5 exhibits excellent thermoplasticity and processing stability. It is suitable for a variety of processing methods, including extrusion, injection molding, calendering, and blow molding. Within a proper processing temperature range, its melt viscosity is moderate and flow is uniform, making it highly compatible with high-speed extrusion operations and adaptable to various processing equipment. This versatility makes SG5 the most commonly used PVC resin for the production of profiles, pipes, fittings, and sheets.
2. Excellent Mechanical Strength
With a moderate degree of polymerization, SG5 products demonstrate strong mechanical properties and rigidity. Rigid products formed from SG5 exhibit high tensile and flexural strength, as well as good impact resistance, meeting the requirements of building materials, industrial components, and pressure-resistant conveyance systems. Therefore, SG5 is considered the standard material for rigid PVC applications.
3. Strong Formulation Compatibility
PVC resin sg5 is highly compatible with a wide range of PVC additives, including heat stabilizers, impact modifiers, processing aids, and fillers, allowing flexible formulation design. It accepts common fillers such as calcium carbonate and talc effectively, enabling cost reduction without compromising strength, thus enhancing the economic efficiency and competitiveness of the formulation.
4. Superior Chemical and Corrosion Resistance
PVC SG5 shows excellent resistance to water, saline solutions, and weak acids and bases. It is also stable against oils and alcohols, does not absorb moisture, rust, or corrode. These properties make it suitable for chemical pipelines, industrial panels, and corrosion-resistant containers, effectively replacing some metal materials while providing long service life.
5. Excellent Electrical Insulation
Rigid PVC products made from SG5 have superior electrical insulation and dielectric properties. Even under humid conditions or moderate temperatures, the material maintains stable performance, making it widely used in the electrical and cable industry for insulation housings, cable conduits, and cable trays.
6. Good Flame Retardancy
SG5 itself is inherently flame-retardant. It is self-extinguishing in air, burns slowly, does not easily propagate flames, and does not drip molten material. Moreover, it generates relatively low smoke during combustion, making it ideal for applications where fire safety is critical, such as construction materials and safety-oriented decorative materials.
7. Excellent Weather Resistance and Dimensional Stability
The resin adapts well to environmental temperature and climate variations, maintaining performance even during long-term outdoor exposure. Products made from SG5 are resistant to deformation and aging, with good dimensional stability. UV resistance can be enhanced through formulation adjustments to meet long-term outdoor application requirements.
8. Hygiene and Environmental Advantages
It is inherently non-toxic. When combined with environmentally friendly stabilizer systems (such as calcium-zinc or organotin stabilizers), it can meet standards for food contact and drinking water applications and comply with RoHS and REACH environmental regulations. SG5 products are recyclable, contributing to resource efficiency and sustainability.