PVC Tape 3M 764B5033 blue, 50 mm x 33 m, electrical insulating tape

PVC Tape 3M 764B5033 blue, 50 mm x 33 m, electrical insulating tape is a PVC-based adhesive tape designed for electrical insulation, mechanical protection and color-coding. The tape is 50 mm wide and 33 m long, with a blue finish intended for marking and organizing wiring in residential, commercial and light-industrial installations. The product combines the dielectric properties of PVC with an adhesive that bonds reliably to common cable jacketing and conductor insulation. It is manufactured for ease of application and manual tearing to speed up small repairs and on-site adjustments.

Advantages

The PVC construction provides consistent dielectric strength and resistance to moisture and abrasion, while the pressure-sensitive adhesive ensures stable adhesion on PVC, rubber and other common insulating materials. The 50 mm width covers larger joints and splices with fewer wraps, and the 33 m roll length offers a balance between convenience and reduced roll changes on typical job sites. The blue color supports visual identification and color-coding of phases, circuits or service types without additional marking tools. The tape is formulated for straightforward manual tearing and handling during installation.

Suitable for (tasks / use cases)

• Insulating splices and terminations in low-voltage electrical work
• Mechanical protection of cables and wire harnesses
• Color-coding phases, circuits or service lines during installation and maintenance
• Temporary repairs and on-site adjustments where quick application is required

Key specifications

• Material: PVC backing with pressure-sensitive adhesive
• Color: Blue
• Width: 50 mm
• Length: 33 m per roll
• Function: Electrical insulation and mechanical protection
• Application: Manual application and tearable by hand

How to use

Clean and dry the surface of cables or components to remove dust, oil and moisture before applying the tape. Start the wrap with an initial overlap on the cable or joint, then apply the tape with slight tension while overlapping each turn by approximately half the tape width to ensure continuous dielectric coverage. For splices and terminations, extend the tape beyond the joint area on both sides to create a secure seal. Tear the tape by hand at the required length or use a cutting tool for a straight edge. Avoid stretching the tape excessively to prevent dimensional recovery that could reduce insulation thickness.

Usage recommendations

Store rolls in a cool, dry place away from direct sunlight and temperatures outside the recommended range. For long-term insulation or high-voltage applications, select tapes specified for the necessary voltage and environmental resistance. Use appropriate personal protective equipment and follow local electrical safety standards when performing installation or repair work.