3M 7000006048 Rubber Mastic Tape 1 Inch X 10 Ft

Product Description

The 3M 7000006048 is a rubber mastic tape designed for electrical insulation, moisture sealing, and void-filling applications in low-voltage wiring systems. Sold as a case of 12 rolls, each roll measures 1 inch wide by 10 feet long. The self-fusing, conformable rubber mastic compound fills irregular surfaces and seals against moisture ingress without requiring heat or adhesive activation. Electricians and low-voltage technicians use this tape to insulate splices, protect cable jackets, and seal conduit entry points in both indoor and outdoor environments.

This tape is suited for residential and light commercial electrical work where a conformable, moisture-resistant insulating layer is needed. Common applications include splicing insulation at wire joints, sealing around cable penetrations, and wrapping irregular or stepped-diameter connections where rigid tapes would not conform. The case pack of 12 rolls supports stocking for service trucks or job-site supply.

Key Features

• Rubber mastic compound conforms to irregular surfaces and voids without heat activation
• Provides moisture sealing and electrical insulation at splice points
• Each roll is 1 inch wide by 10 feet long for manageable hand-application
• Case pack of 12 rolls for efficient job-site or truck stock replenishment
• Self-fusing construction eliminates need for additional adhesive

Compatibility

Designed as a general-purpose rubber mastic insulating tape suitable for low-voltage electrical splice insulation and moisture sealing on standard wire and cable jacket materials.

Installation Notes

Installation is typically performed by a licensed electrician or low-voltage technician following applicable NEC requirements for insulated splices and terminations. De-energize and lock out the circuit before working on any splice or connection. Apply tape with consistent tension, overlapping each wrap by at least half the tape width to ensure full coverage and a void-free seal. Do not over-stretch the tape, as this may reduce the effective insulating and sealing layer thickness.

Technical Specifications

• Roll Width: 1 inch
• Roll Length: 10 ft
• Case Quantity: 12 rolls
• Case Weight: 5.45 pounds
• UOM: Case
• UPC: 00054007507277

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000006048