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Scotch® 77 Arc & Fire Proofing Tape

Scotch® 77 Arc & Fire Proofing Tape

Scotch® 77 Tape is a 0.762mm thick, arc and fireproofing tape designed to protect all types of electrical cables. Its unique formulation allows the manufacture of an unsupported elastomer that expands in fire to provide a thick char build-up between the flame and cable. This insulating firewall acts as a heat shield and flame barrier, thus protecting the cables and accessories.

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Features

  • Clean and easy to apply
  • Provides fault arc protection to adjacent wrapped cables
  • Provides additional electrical insulation
  • Resists U.V., water, salt water, acids and sewage
  • Colour = Black
  • Available in 38mm x 6m, 78mm x 6m

Applications

  • To fire and arc proof control cables when high energy power cables are present
  • To fire and arc proof all cables in areas where possibility of fire hazard exists
  • To provide additional electrical insulation, thus reducing possibilities of transferred arcs
  • To fire and arc proof piping systems (ie. gas, water, or oil lines)
  • To fire and arc proof high-energy power cables where exposed to failures of other high-energy cables (
  • The installed tape to be secured with 2 layers of 69 glass cloth tape

Specifications

  • Colour Black
  • Thickness0.76mm
  • Temperature RangeWithstand extreme temperatures of a high current fault arc (13,000°K)
  • StandardsRoSH
  • Material TypeUnsupported Intumescent Elastomer
  • Elongation-18°C : 90%, -12°C : 130%, 23°C : 150%
  • Width x Length38mm x 6m, 72mm x 6m
  • Dielectric StrengthElectrical Arc Resistance Simulated High current fault arc (13,000°K) - One half-lap layer: 75 cycles, Two half-lap layers: 145 cycles
  • Breaking Strength1500 PSI
  • Thermal Conductivity 23°C - .078 BTU/hr./ft. °F
  • Adhesion to SteelNot adhesive coated, it must be held in place after wrapping with bands of Scotch™ 69 Glass Cloth Electrical Tape
  • Adhesion to Backing Not adhesive coated, it must be held in place after wrapping with bands of Scotch™ 69 Glass Cloth Electrical Tape
  • Flame RetardantSelf Extinguishing

Technical Datasheets

  • Scotch® 77 Arc & Fire Protection Elastomer Datasheet

Brochures

  • Electrical Tapes Brochure
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3M offer a range of mastic tape solutions too! Ranging from mastic tape rolls,to mastic tape pads and electrical putty!

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