3M 7000123894 Glass Cloth Tape White 2in X 36yd 7.0 Mil

Product Description

The 3M 7000123894 is a general purpose glass cloth tape designed for applications requiring high-temperature resistance, strong adhesion, and durable backing. The tape features a silicone adhesive coating applied to a woven glass cloth backing approximately 6.5 mil thick with a total thickness of 7.0 mil. The silicone adhesive maintains bond integrity at elevated temperatures where standard acrylic or rubber-based adhesives fail. The glass cloth carrier provides excellent tensile strength and abrasion resistance, making it suitable for use by HVAC technicians, electricians, and industrial maintenance professionals who need a reliable, heat-stable tape for insulation holding, bundling, or masking tasks in high-heat environments.

This tape is used in residential and commercial applications where surfaces or components are exposed to sustained or intermittent high temperatures. Common uses include securing thermal insulation on ductwork, wrapping wire harnesses near heat sources, masking during powder coating or curing processes, and general bundling or sealing in mechanical rooms or industrial settings. The easy-unwind construction allows for single-hand application in tight spaces, improving workflow efficiency during installation or service calls.

Key Features

• Silicone adhesive provides strong bond and high-temperature resistance
• Woven glass cloth backing delivers excellent tensile strength and abrasion resistance
• Total tape thickness of 7.0 mil for durability in demanding applications
• Easy-unwind construction for efficient single-hand application
• White color aids visibility during installation and inspection
• Rolls measure 2 inches wide by 36 yards long for extended coverage per roll

Compatibility

Designed as a general purpose glass cloth tape suitable for high-temperature masking, insulation securing, wire bundling, and surface protection tasks across HVAC, electrical, and industrial maintenance applications.

Installation Notes

This tape is typically applied by HVAC technicians, electricians, or maintenance personnel working on insulated ductwork, wire management, or high-heat component assemblies. Ensure the application surface is clean, dry, and free of oils or dust before applying tape to achieve full adhesive contact. When used near energized components, de-energize and lock out the circuit per applicable NEC requirements before beginning work. Avoid stretching the tape during application, as this can reduce bond area and long-term holding strength.

Technical Specifications

• Total Tape Thickness: 7.0 mil
• Adhesive Thickness: 6.5 mil
• Adhesive Type: Silicone
• Backing Material: Glass Cloth
• Tape Width: 2 inches
• Tape Length: 36 yards per roll
• Color: White
• Weight: 1.01 pounds
• Unit of Measure: Roll
• UPC: 00021200482366

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000123894