3M Glass Cloth Electrical Tape

•  3M™ Scotch 27 Glass Cloth Electrical Tape is a white, woven glass cloth electrical tape designed for applications requiring high mechanical strength and elevated temperature resistance.
• The Class B thermal rating makes it suitable for industrial heating systems and electrical insulation where temperatures are moderate but still demanding.
• Woven glass cloth backing provides excellent tensile strength, tear resistance, and abrasion resistance.
• Coated with a thermosetting rubber pressure-sensitive adhesive that does not require heat or moisture to activate.
• Adhesive is specially designed and prepared to provide corrosion protection
• Recommended for steel pipes, which naturally conduct heat effectively
• Used for Pipe trace installation

Construction & Composition

• Woven glass cloth backing provides excellent tensile strength, tear resistance, and abrasion resistance.
• Coated with a thermosetting rubber pressure-sensitive adhesive that does not require heat or moisture to activate.

Temperature & Electrical Ratings

• Class B insulation — continuous use up to 130 °C (266 °F), short-term peaks up to ~160–175 °C.
• Suitable for 600 V dry electrical applications.

Mechanical & Electrical Properties

• High tensile and tear strength — good mechanical protection in demanding environments.
• Conformable and edge-tear resistant, making it easy to wrap around irregular shapes.
• Corrosion protection adhesive helps protect underlying metal surfaces.
• Printable surface for marking or labeling during installation.

Certifications & Compliance

• UL Recognized under UL Standard 510.
• CSA certified for relevant electrical insulation applications.

Safety Tips

• Wear appropriate PPE (gloves, safety glasses) when working with insulation materials
• Inspect wraps periodically in high-heat environments for wear or fraying.
• Follow all local electrical codes and manufacturer guidance for trace systems.