At its core, insulation tape is designed to insulate electrical wires and other conductive materials. The 50mm width makes it especially suited for larger cables and applications where broader coverage is necessary. Typically made from a blend of PVC and rubber, black insulation tape is favored for its durability and resistance to electric current, heat, and moisture. The black color also provides a sleek look that blends well with many surfaces, making it ideal for both visible and hidden applications.