3M 7000048541 Glass Cloth Tape 365 White 4in X 60yd 8.3 Mil

Product Description

The 3M 7000048541 is a white thermosetable glass cloth tape from the 3M 365 series, measuring 4 inches wide by 60 yards long at 8.3 mil total thickness. It combines a woven glass cloth backing with a thermosetable rubber-resin adhesive that cures under heat to form a durable, high-strength bond. The backing delivers high tensile strength and elevated temperature resistance. The adhesive provides strong holding power and flows into irregular surface profiles, making it effective for bonding rough or low-cohesion substrates. Licensed HVAC technicians, insulation contractors, and industrial maintenance professionals are the primary installers of this product.

This tape is suited for splicing and joining applications where the substrate has a rough surface texture or limited internal strength. Common applications include splicing roofing felt, bonding textiles, and securing insulation facings in commercial and industrial environments. Its conformable glass cloth backing allows it to wrap and adhere to uneven surfaces without lifting. The thermoset adhesive characteristic makes it appropriate for installations exposed to sustained elevated temperatures where standard pressure-sensitive adhesives may fail or migrate.

Key Features

• Thermosetable rubber-resin adhesive cures under heat for a permanent, high-strength bond
• 8.3 mil total thickness with woven glass cloth backing for high tensile strength
• Conformable backing adapts to rough and irregular surface profiles
• Elevated temperature resistance suitable for insulation and industrial splice applications
• 4-inch width provides broad coverage for splicing wide-format materials such as roofing felt and textile rolls
• 60-yard roll length minimizes roll changes on large jobs

Compatibility

Designed as an OEM-style tape solution for splicing and bonding applications involving rough-surface substrates including roofing felt, textiles, and insulation facings in commercial and industrial settings.

Installation Notes

Application is typically performed by insulation contractors, roofing professionals, or industrial maintenance technicians. The substrate surface should be clean, dry, and free of loose debris before applying the tape to ensure full adhesive contact. For thermoset activation, follow the adhesive manufacturer's recommended heat cure schedule using appropriate heat application equipment. Do not stretch the backing excessively during application, as glass cloth fibers can fracture under sharp bending stress.

Technical Specifications

• Tape Thickness: 8.3 mil
• Width: 4 inches
• Length: 60 yards
• Backing Material: Woven glass cloth
• Adhesive Type: Thermosetable rubber-resin
• Color: White
• Unit of Measure: Roll
• Weight: 3.18 pounds
• UPC: 00021200038617

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000048541