Product Overview
SG5 PVC is a suspension-grade polyvinyl chloride resin produced by Xinjiang Tianye (Group) Co., Ltd. This material is a general-purpose, medium-degree-of-polymerization resin with a viscosity number of 118 ml/g. It is primarily targeted at the extrusion processing of rigid pipes, profiles, and sheets. SG5 exhibits excellent mechanical properties and thermal stability, meeting the basic requirements for structural materials in construction and municipal engineering projects. This grade is specifically designed for single-screw or twin-screw extrusion processes and is suitable for the production of water supply/drainage pipes, window and door profiles, and industrial sheets.
Technical Specifications
Physical Properties
| Item | Test Condition | Value | Test Method |
| Volatile Content | — | ≤0.26 % | Internal Method |
| Fish Eyes | — | 0.03 particles/cm² | Internal Method |
| Viscosity Number | — | 118 ml/g | Internal Method |
| Apparent Density | — | ≥0.51 g/ml | Internal Method |
Other Properties
| Item | Test Condition | Value | Test Method |
| Sieve Residue | 25μm Sieve | ≤0.6 % | Internal Method |
| Sieve Residue | 63μm Sieve | ≥99 % | Internal Method |
| Monomer Content | — | ≤0.7 μg/g | Internal Method |
| Impurities | — | ≤24 particles/kg | Internal Method |
Disclaimer: The technical specifications for Xinjiang Tianye SG5 PVC Resin presented herein are derived from data issued by Xinjiang Tianye (Group) Co., Ltd. or certified third-party testing institutions. While we have made every effort to ensure the accuracy of the information provided, we assume no liability for any consequences arising from the use of SG5 PVC Resin based on these data. Given the variables involved in processing conditions, we strongly recommend conducting thorough trials of SG5 PVC Resin under your specific operational environment prior to final material selection.
Logistics & Supply Standards
This product is packed in standard 25 kg multi-layer kraft paper bags; jumbo bags (Big Bags) are also available upon request. We maintain regular stock at major ports and inland hubs to ensure supply chain continuity. Standard order lead times depend on Incoterms and destination port logistics, and are typically arranged for shipment following order confirmation. As a non-hazardous chemical, SG5 PVC can be transported in mixed loads with other general plastic raw materials to help customers optimize comprehensive logistics costs and warehouse space utilization.
Compliance & Quality Commitment
We ensure that all supplied SG5 PVC complies with relevant international and regional regulatory requirements, including the RoHS directive and REACH regulations concerning restrictions on heavy metals and hazardous substance migration. Each batch is accompanied by complete quality management documentation, including the Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS/SDS), and Certificate of Analysis (COA). We have established a strict batch traceability mechanism to ensure that data is verifiable throughout the entire process from raw material polymerization and packaging to final delivery, meeting the requirements of downstream processors for supply chain transparency.
Sustainability & ESG Statement
As a thermoplastic material, polyvinyl chloride (PVC) possesses physical recycling and reuse characteristics. SG5 PVC is produced under strict process control to reduce energy consumption and the emission of volatile organic compounds (VOCs). We are committed to supporting the development of a circular economy and encourage customers to classify, recycle, and reprocess off-cuts and non-conforming products during the manufacturing stage. Furthermore, the production process follows industry best practices aimed at reducing environmental impact and aligns with global green supply chain trends.
Frequently Asked Questions (FAQ)
Q1: Is drying required before extrusion processing of SG5 PVC? What are the recommended process parameters?
A1: Yes. Although PVC has relatively low hygroscopicity, it is recommended to perform pre-drying before processing to prevent surface bubbles or rough inner walls caused by trace moisture during extrusion. The recommended process is to dry in an oven or hot air circulating dryer at 60-80°C for 1-2 hours; the specific duration depends on the humidity of the storage environment.
Q2: What is the difference in application selection between SG5 and SG3 or SG7 grades?
A2: SG5 has a viscosity number of 118 ml/g and is a medium-degree-of-polymerization resin. Compared to the high-polymerization SG3 (which has a higher viscosity number), SG5 offers better melt flowability and lower processing torque, making it more suitable for the extrusion of standard wall-thickness pipes and profiles; compared to the low-polymerization SG7, SG5 provides higher mechanical strength and toughness. Selection should be based on a comprehensive assessment of product wall thickness, pressure requirements, and the plasticizing capacity of the processing equipment.
Q3: Is this material suitable for piping systems that directly contact drinking water? What hygiene permits are required?
A3: SG5 PVC is a base resin grade. The production of drinking water pipes requires the addition of specific stabilizers, lubricants, and other additives, and the final pipe product must comply with local hygiene standards (such as NSF/ANSI 61 or GB/T 17219). We can provide relevant test data regarding the safety of the base resin for water contact, but the final hygiene permit for the pipe must be applied for by the pipe manufacturer from the relevant regulatory authorities based on the test results of the finished product.
