tesaflex® 4163 nastro isolante in PVC 19 mm x 20 m nero 4163-187-92

Electrical installations and repairs demand a tape that insulates reliably, resists abrasion, and withstands temperature swings without peeling or cracking. The tesaflex® 4163 delivers exactly that: a premium PVC insulation tape engineered for professional electricians and demanding DIY users who need consistent, long-lasting protection for splices, cable bundling, and marking.

Who is it for

This tape is built for electricians, maintenance technicians, and advanced hobbyists working on low-voltage wiring, cable harnessing, and general electrical repairs. If you need a tape that meets VDE and IMQ standards, offers excellent dielectric strength, and remains flexible even in cold conditions, this is your go-to solution.

Main features

• High-quality PVC backing with aggressive rubber adhesive for secure, long-term bonding.
• Excellent electrical insulation: dielectric breakdown voltage up to 9000 V and dielectric strength of 40 kV/mm.
• Self-extinguishing and flame retardant, meeting VDE (EN 60454-3-1 Type 5) and IMQ standards.
• Wide temperature range from -5 °C to +90 °C, suitable for indoor and protected outdoor use.
• Good UV and weather resistance for durable outdoor applications.
• Elongation at break of 220% allows the tape to conform tightly to irregular shapes and provide strain relief.
• Strong adhesion to steel (2.5 N/cm) and tensile strength of 30 N/cm ensure the tape stays in place under mechanical stress.

Specifications

• Product type: PVC insulation tape
• Backing material: PVC
• Adhesive type: Rubber
• Colour: Black
• Width: 19 mm
• Length: 20 m
• Total thickness: 0.15 mm
• Adhesion to steel: 2.5 N/cm
• Tensile strength: 30 N/cm
• Elongation at break: 220%
• Temperature resistance: -5 °C to +90 °C
• Dielectric breakdown voltage: 9000 V
• Dielectric strength: 40 kV/mm
• Flame retardant: Self-extinguishing
• Standards met: VDE (EN 60454-3-1 Type 5), IMQ
• UV resistance: Good (weather resistant)

Tips

For best results, apply the tape to clean, dry surfaces at room temperature. Stretch the tape slightly while wrapping to ensure a tight, void-free insulation layer. Overlap each turn by half the tape width for maximum protection. Store the tape in a cool, dry place away from direct sunlight to preserve its adhesive properties.