PVC compound type ST2 is a specially engineered formulation developed for high-temperature cable insulation and sheathing, supporting a continuous working temperature of up to 90 °C. It incorporates advanced heat stabilizers, high-quality PVC resin, and precise lubricant systems to ensure reliable performance under demanding thermal and mechanical conditions.
The compound provides excellent resistance to heat,  moisture while maintaining flexibility and mechanical strength over time. This makes it an ideal material for automotive, industrial, and high-temperature electrical cables.
Its smooth and glossy finish, combined with color stability and ease of processing during extrusion, ensures a consistent, durable, and professional final product.

This product is designed for use as sheathing for flexible cables (stranded cables) with a voltage rating of 450/750 V. It is formulated with high-quality additives, including strong stabilizers and plasticizers, to ensure optimal performance.

According to the PVC/ST5 IEC 60227 standard, this product is required to demonstrate mechanical strength of 10.5 MPa and a minimum elongation of 150%.

One of the distinctive features of Khorram Plastic’s insulating compounds is the high gloss of the final product surface, which enhances both appearance and perceived quality. This grade also exhibits the lowest specific gravity while delivering the highest mechanical properties, making it an excellent choice for manufacturers seeking both performance and material efficiency.

This product is designed for use as sheathing for flexible cables (stranded cables) with a voltage rating of 450/750 V. It is formulated with high-quality additives, including strong stabilizers and plasticizers, to ensure optimal performance.

In accordance with the standard PVC/ST5 IEC 60227, this product is required to demonstrate mechanical strength of 10.5 MPa and a minimum elongation of 220%.

One of the distinctive features of Khorram Plastic’s insulating compounds is the high gloss of the final product surface, which enhances both aesthetic appeal and perceived quality. Despite offering excellent mechanical properties and superior surface gloss, this grade remains a cost-effective solution, providing manufacturers with high-quality performance at a competitive price.

Grade B is a calcium-zinc based compound (environmentally friendly) recommended for flexible cable sheathing applications, particularly for use in extruders with L/D ratios of 22–24.

Products manufactured with this grade exhibit high gloss and a smooth surface finish, ensuring both visual appeal and functional quality.

This compound is produced in compliance with the relevant industry standards, including IEC 60227: PVC ST5 and BS 6746: TM2, providing manufacturers with a reliable, standard-compliant material suitable for high-quality cable production.