PVC _ Black (Grade: ST4)

• PVC – Black:

  • Colored with carbon black, giving it:

    • UV protection

    • Increased weather resistance

    • Enhanced durability for outdoor use

• Grade: ST4:

  • “ST4″ is a formulation grade (usually softer than ST5, ST10, etc.).

  • Often used for:

    • Cable insulation

    • Flexible sheathing

    • Low-voltage wiring

Typical Applications of  PVC _ Black (Grade: ST4):

• Insulation for communication and control wires
• Flexible cable jackets (indoor/outdoor)
• Automotive or appliance wiring
• Low-voltage and signal cabling

“ST4” is not a universal standard like UL or ASTM codes — it’s likely a proprietary formulation from a specific supplier or compound manufacturer. To be sure about:

• Shore hardness
• Specific gravity
• Flame rating (e.g., UL 94 V-1, V-2)
• Elongation/tensile strength
• RoHS or REACH compliance