3M 7100025247 Glass Cloth Tape 1 in X 60 Yd 8.3 Mil White

Product Description

The 3M 7100025247 is a white, 8.3 mil glass cloth tape with a thermosetable rubber-resin adhesive designed for high-adhesion applications that demand a strong, conformable backing. The woven glass cloth construction delivers high tensile strength and temperature resistance, while the thermoset adhesive provides aggressive holding power and flow properties that allow the tape to bond firmly to rough, irregular, or low-strength surfaces. Trade professionals use this tape for splicing and securing materials in demanding environments where standard cloth tapes fall short.

This tape is suited for commercial and industrial applications including splicing roofing felt, textiles, and similar materials with rough surfaces or low internal strength. Its conformable backing allows it to lay flat and maintain contact across uneven substrates. The thermoset adhesive cures in place, making it appropriate for installations that require a durable, long-term bond under elevated temperatures or mechanical stress. HVAC and building-envelope contractors will find it useful in locations where high-temperature exposure is a consideration.

Key Features

• 8.3 mil total thickness for a strong, conformable backing with high tensile strength
• Thermosetable rubber-resin adhesive provides aggressive holding power on rough and low-strength surfaces
• Woven glass cloth construction offers temperature resistance beyond standard cloth tape
• Performs well on difficult substrates including roofing felt and woven textiles
• White finish suitable for applications where tape appearance is a factor
• 1 inch width and 60-yard roll length for efficient coverage on splicing and seaming work

Compatibility

Designed as a high-adhesion splicing and seaming tape for rough-surface and low-internal-strength materials such as roofing felt, textiles, and similar substrates in commercial and industrial applications.

Installation Notes

Surface preparation is critical — substrate should be clean, dry, and free of dust or loose material before application to achieve full adhesive contact. Apply firm hand or roller pressure across the full tape width to ensure proper adhesive flow into the surface texture. For elevated-temperature or permanent splicing applications, follow the thermoset cure requirements specified by the jobsite engineer or manufacturer guidelines. Cut tape with a sharp blade or dispenser to maintain a clean edge and avoid fraying the glass cloth backing.

Technical Specifications

• Thickness: 8.3 mil (0.20 inches nominal tape thickness)
• Width: 1 inch
• Length: 60 yards per roll
• Color: White
• Adhesive Type: Thermosetable rubber-resin
• Backing Material: Woven glass cloth
• Unit of Measure: Roll
• Weight: 0.84 pounds
• UPC: 00021200030208

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100025247