PVC Compound ST-2 is a thermoplastic insulation material widely used in the electrical and cable industry, conforming to industry standards for sheathing and insulation applications. This compound offers excellent mechanical strength, electrical resistance, and processability, making it suitable for both domestic and industrial wiring. ST-2 grade is particularly formulated to provide consistent performance across various color variants, which are tailored not only for visual identification but also for enhanced functional characteristics. For instance, black variants typically contain carbon black for superior UV resistance in outdoor applications, while red, yellow, and green variants are optimized for internal wiring visibility and identification. The pigment load in each color affects thermal stability, dielectric properties, and weathering resistance, making color selection a key factor in application-specific performance.