PVC S70, identified as Grade S-7054, is a thermoplastic polymer containing approximately 56% weight chlorine derived from vinyl chloride. This grade is distinguished by its high porosity, making it particularly well-suited for flexible applications. The grade is designed to meet specific requirements in electrical, mechanical, and thermal properties for various applications.
 
Applications:
Extrusion of Flexible Sections and Hoses: Ideal for producing flexible components used in various industrial and commercial settings.
Cable Industry: Specially tailored for insulation and sheathing in cable manufacturing, where flexibility and durability are crucial.
 
Typical Properties and Data:
K-Value: 7 (DIN-53726), indicating the polymer’s degree of polymerization and viscosity related characteristics.
Sulphate Ash: 7.70 wt% max (DIN-53568/2), which reflects the inorganic content derived from additives or fillers.
Volatiles: 7.0 wt% max (ISO R-1269), measuring the amount of volatile substances that can evaporate under specified conditions.
Bulk Density: 097 gr/lit (DIN-53466), providing information on the compactness of the powdered resin which affects handling and storage.
Screen Analysis (Residue on Sieve):
36 micron
007 micron (DIN-53734), assessing the particle size distribution which is crucial for processing and application quality.
Dark Resin (Particles in 250g PVC): 67 No.max (HULS-6.7), a measure of the purity and cleanliness of the resin.
Plasticizer Acceptance: 07 gr DOP/100gr PVC min (DIN-53417/1), indicating how much plasticizer the PVC can absorb, which affects its flexibility and processing.
Fish Eyes: 0 Number per 25 cm² max (HULS-6.9), assessing the clarity and uniformity of the resin.
Flow Ability (Diameter of Funnel Outlet): 0 mm max (HULS-6.10), indicating the flow characteristics of the polymer through a specified diameter, relevant for processing.
Viscosity Number: 570 Cm³/g (DIN-53726), a further measure of the polymer’s molecular weight and intrinsic viscosity.
Residual VCM: ≤5 ppm (HULS-6.11), quantifying the residual vinyl chloride monomer, a critical safety and health measure.
 
Summary: PVC S70 - Grade S-7054 is optimized for use in flexible product applications where its unique blend of mechanical robustness, high porosity, and excellent plasticizer compatibility are essential. It is particularly advantageous in the cable industry and for extrusion processes requiring flexible PVC components. The grade’s specifications ensure it meets stringent industry standards for quality and performance, making it a reliable choice for manufacturers requiring high-performance materials.