• Description for 3M 3731

    The coating with Plastic-Metal WP provides a high<br/>resistance against abrasion and wear and is very resistant against<br/>chemicals.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Sticks
    Substrate Acrylic, Fabric, Nylon 66, ABS, PolyEthylene, PVC (Rigid), Polyolefin, Polystyrene, Polycarbonate, Polypropylene, Cold rolled Steel, Corrugated, Paper, FRP, Polystyrene Foam, HDPE, P.V.C., Polystyrene Foam, Douglas Fir, Plastics
    Industry Core
    Manufacturer 3M
    Chemistry Hot melt: Polyolefin
    Cure Method Hot melt
    Cure Time (min) Fast
    Viscosity (cPs) 12,000
    Color Light Tan
    High Temperature Resistance (°C) 54, High Heat Resistance
  • Technical Data for 3M 3731

    Overview
    Specifications
    Cure Specs
    Cure Time (min) Fast
    Viscosity (cPs) 12,000 Test Method
    Set Time (min) Fast
    Bond Strength
    Peel Strength (piw) 22, 23, 23, 18, 15, 22, 19, 15 Test Method
    Shear Strength (psi) 550, 420, 450, 430, 257, 430, 475, 490, 390 Test Method
    Material Resistance
    High Temperature Resistance (°C) 54, High Heat Resistance
    Other Properties
    Specific Gravity 0.920
    Flash Point (°F) 523.4
    % Solids (%) 100
  • Best Practices for 3M 3731

    *See Terms of Use Below

    1. Application

      3M™Jet-melt™ Polyolefin Bonding Adhesive 3731 is designed for applications using a 3M™ Polygun™ EC Applicator at the 4 or 5 module setting or a 3M™ Polygun™ II Applicator.

      Recommended equipment temperature for bulk dispensing 350-375°F (177-191°C).

      Apply to one surface. Make bond as soon as possible. Bond strength is maximized when open time is reduced.

      After bond is made, there is immediate strength and no clamping is necessary.

      Adhesive should be allowed to fully crystallize (possibly up to 12 hours) to obtain full performance properties.

  • Comparable Materials for 3M 3731

    *See Terms of Use Below

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Viscosity Test Methods
Viscosity Test Method Temperature
12,000 cPs Brookfield Thermocel Viscometer in Centipoise using a #27 Spindle @ 10 RPM. @ 375°F1 191°C 191°C
Shear Strength Test Methods
Shear Strength Type Substrate
550 psi Overlap shear strength Polypropylene
420 psi Overlap shear strength HDPE
450 psi Overlap shear strength ABS
430 psi Overlap shear strength PVC (Rigid)
257 psi Overlap shear strength Polystyrene (High Impact)
430 psi Overlap shear strength Polycarbonate
475 psi Overlap shear strength Nylon 66
490 psi Overlap shear strength Douglas Fir
390 psi Overlap shear strength Cold Rolled Steel
Peel Strength Test Methods
Peel Strength Type Substrate
22 piw 180° Peel strength Canvas to Polypropylene
23 piw 180° Peel strength Canvas to HDPE
23 piw 180° Peel strength Canvas to ABS
18 piw 180° Peel strength Canvas to P.V.C. (Rigid)
15 piw 180° Peel strength Canvas to Polystyrene (High Impact)
22 piw 180° Peel strength Canvas to Polycarbonate
19 piw 180° Peel strength Canvas to Nylon 66
15 piw 180° Peel strength Canvas to Cold Rolled Steel