• Description for 3M 5491

    Tape has a film backing with a silicone adhesive.

    *See Terms of Use Below

    Application Type Bond, Mask, Sealing
    1 Part or 2 Part 1 Part
    Material Form Tape
    Substrate Steel
    Industry Machinery
    Manufacturer 3M
    Chemistry Extruded PTFE (polytetrafluoroethylene), Silicone
    Cure Method Pressure Sensitive
    Color Gray
    Chemical Resistance Excellent
    High Temperature Resistance (°C) 260
    Low Temperature Resistance (°C) -54
    Other Resistance organic resistance
  • Technical Data for 3M 5491

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape
    • Substrate
      • Steel
      • Other - Non-stick surface, a variety of substrates
    • Industry
      • Industrial - Equipment
      • Machinery
      • Other - Easy-release surface on rollers, plates, belts, etc. where build-up of sticky materials and inks can occur., Low coefficient of friction surface on rollers, formers, etc. to facilitate web movement., Chemical resistant surface for sealing and masking., Wrapping rubber nip rollers on hot polyethylene extrusion machines, Roll-wrap lay flat applications, Mold release for composite or metal bonding.
    • Chemistry
      • Other - Extruded PTFE (polytetrafluoroethylene)
      • Silicone
    • Application Method
      • Roll - Wrapping rubber nip rollers
      • Contact
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Gray
    Specifications
    Bond Strength
    General Bond Strength (psi) 35 (oz./in.) Test Method
    Tensile Strength (psi) 42 (lbs./in.) Test Method
    Material Resistance
    Chemical Resistance Excellent
    High Temperature Resistance (°C) 260
    Low Temperature Resistance (°C) -54
    Other Resistance organic resistance
    Hardness
    Elongation (%) 260 Test Method
    Business Information
    Shelf Life Details Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original carton.;To obtain best performance, use this product within 24 months from date of manufacture.
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 24
    Not Good For
    Don't Use For applications requiring organic resistance
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Tensile Strength Test Methods
Tensile Strength Test Method
42 (lbs./in.) at Break, ASTM D-3759, width
General Bond Strength Test Methods
General Bond Strength Substrate Test Method
35 (oz./in.) Steel ASTM D-3330, width
Elongation Test Methods
Elongation Test Method
260 % ASTM D-3759 (at Break)