Harbor Products F4 Black Self-Fusing Silicone Tape – 1″ Wide x .020″ Thick x 36′ Long Roll
Harbor Products F4 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, Pipes, Hoses, Electrical Splices, it delivers reliable performance, long-lasting adhesion, and specialized protection across a wide range of industrial, commercial, and technical applications. Black in color, this product is trusted by engineers, procurement professionals, and maintenance teams worldwide who demand consistent, specification-grade tape performance in every application.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | TT100020360L1USZ |
| Brand | Harbor Products |
| Product / Model Name | Harbor Products F4 |
| Color | Black |
| Package Size | 1″ W x 0.020″ Thick x 36′ Roll |
| Product Type | Self-Fusing Silicone Tape |
| Specification | N/A |
| Application Surfaces | Wires, Cables, Pipes, Hoses, Electrical Splices |
Technical Information
Harbor Products F4 Black Self-Fusing Silicone Tape is a commercial-grade, adhesive-free self-amalgamating silicone tape for electrical cable insulation, pipe sealing, hose jacket repair, and general industrial protection in maintenance and commercial electrical applications. At 0.020″ thickness on a 36-foot roll, the tape provides reliable self-fusing performance when stretched and overlapped — silicone layers fuse together under hand pressure to form a solid, watertight, electrically insulating rubber wrap without adhesive, primer, or surface preparation. It maintains flexibility and sealing integrity across a broad temperature range, making it a versatile field and workshop solution for cable, pipe, and connector protection.
Why Choose Harbor Products F4?
- Adhesive-Free Self-Fusion — Bonds only to itself under pressure — no glue, no residue
- 0.020″ Standard Thickness — Optimal conformability and insulation build per wrap
- Watertight & Airtight — Fused silicone mass provides complete moisture and air barrier
- Flexible Across Temperature Range — Remains flexible and sealed in hot and cold environments
- 36′ Long Roll — Generous length for complete cable, hose, and connector jobs
Frequently Asked Questions
Q: What is Harbor Products F4 Black self-fusing silicone tape used for?
A: Harbor Products F4 Black is used for electrical insulation of wire splices, cable jacket repair, pipe and hose sealing, and connector protection in industrial maintenance and commercial electrical applications.
Q: What is the MPN for Harbor Products F4 Black self-fusing tape?
A: The Manufacturer Part Number (MPN) is TT100020360L1USZ.
Q: How does self-fusing silicone tape create a watertight seal?
A: When stretched 50–75% and wrapped with 50% overlap, the silicone tape layers fuse together under hand pressure to form a single, homogeneous silicone rubber mass that is watertight and electrically insulating with no seams or interfaces.
Q: Is Harbor Products F4 mil-spec qualified?
A: Harbor Products F4 is a commercial-grade self-fusing tape. For mil-spec qualified alternatives, refer to A-A-59163 or MIL-I-22444C specification self-fusing silicone tapes.
Q: What is the maximum voltage rating for F4 self-fusing tape?
A: Consult the current Harbor Products F4 product datasheet for the specific voltage and dielectric strength ratings applicable to your electrical insulation application.
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