Harbor Products F4 Red Self-Fusing Silicone Tape – 1″ Wide x .020″ Thick x 36′ Long Roll

Harbor Products F4 Red by Harbor Products is a professional-grade self-fusing silicone tape available in 1″ W x 0.020″ Thick x 36′ Roll format. Designed for use on Wires, Cables, Hoses, Pipes, Electrical Splices, it delivers reliable performance, long-lasting adhesion, and specialized protection across a wide range of industrial, commercial, and technical applications. Red in color, this product is trusted by engineers, procurement professionals, and maintenance teams worldwide who demand consistent, specification-grade tape performance in every application.

Technical Information

Harbor Products F4 Red Self-Fusing Silicone Tape is the red-color variant of the F4 commercial-grade self-amalgamating silicone tape, providing the same adhesive-free self-fusing performance as the black version in a red color for color-coded cable identification, high-visibility marking, or specific industry color conventions. When stretched and wrapped, the red silicone layers fuse together under hand pressure to form a solid, watertight, electrically insulating rubber mass without adhesive, primer, or surface preparation. The red color can serve dual purposes — electrical insulation and phase or circuit identification in multi-conductor electrical installations.

Why Choose Harbor Products F4 Red?

• Red Color for Identification — Phase marking, circuit ID, or color-coded cable identification
• Adhesive-Free Self-Fusion — Bonds only to itself — no glue, no residue on cables or pipes
• 0.020″ Standard Thickness — Optimal insulation build and conformability per wrap
• Watertight Fused Seal — Fused silicone mass provides complete moisture and air barrier
• 36′ Long Roll — Generous length for complete wiring and hose sealing jobs

Frequently Asked Questions

Q: What is Harbor Products F4 Red self-fusing silicone tape used for?
A: Harbor Products F4 Red is used for electrical insulation combined with color-coded phase or circuit identification on wire splices, cable joints, and hose connections in industrial, marine, and commercial electrical installations.

Q: What is the MPN for Harbor Products F4 Red self-fusing tape?
A: The Manufacturer Part Number (MPN) is TT100020360L1USZ-RED.

Q: What is the difference between Harbor Products F4 Black and F4 Red?
A: Both are 1″ x 0.020″ x 36′ self-fusing silicone tapes with identical performance properties. The only difference is color — black for general applications and red for color-coded cable identification, phase marking, or applications where red silicone tape is specified.

Q: Why use red self-fusing tape instead of black?
A: Red is used in electrical systems for phase identification (L1 or hot in single-phase systems), circuit tracing, or safety marking. Some industries and maintenance standards require color-coded tape for specific cable types or systems, making red self-fusing tape the appropriate choice.

Q: Does red self-fusing silicone tape have the same dielectric properties as black?
A: Yes. Color pigment does not affect the dielectric or self-fusing properties of silicone tape. Harbor Products F4 Red provides the same electrical insulation performance as the black version.