• Description for 3M 3776LM

    Bonds variety of plastics, woods and light-gauge metals

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Sticks
    Substrate Fabric, Foam, Wood, ABS, Polyolefins, Polycarbonate, Metal, Paper, Glass, Ceramic, Rigid Foam, Uncoated Cardboard, Plastic, Thin Metal , Flexible foam, Uncoated Chipboard, Light-gauge Metal, Coated Cardboard, Plain and coated corrugated, Coated Chipboard
    Industry Core
    Manufacturer 3M
    Chemistry Hot melt, Low Melt
    Cure Method Hot melt
    Viscosity (cPs) 8,250
    Color Tan
    High Temperature Resistance (°C) 60
    Density (g/cm³) 0.950
  • Technical Data for 3M 3776LM

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Stick - Sticks
    • Substrate
      • Foam - Rigid Foam, Flexible foam
      • Polyolefin - Polyolefins
      • Ceramic
      • Glass
      • Metal - Thin Metal , Light-gauge Metal
      • Plastic - ABS
      • Polycarbonate
      • Wood - Uncoated Cardboard, Uncoated Chipboard, Coated Cardboard, Coated Chipboard
      • Fabric
      • Paper - Plain and coated corrugated
      • Other - Leather, Beadboard, Styrene, Heat sensitive substrates
    • Industry
    • Chemistry
    • Cure Method
      • Hotmelt - Hot melt
    • Color
      • Brown - Tan
    Specifications
    Cure Specs
    Application Temperature (°F) 261 to 270, 250 to 270
    Viscosity (cPs) 8,250 Test Method
    Softening Point (°C) 84, 84 Test Method
    Work / Pot Time (min) 0.67 Test Method
    Bond Strength
    Peel Strength (piw) 9 Test Method
    Shear Strength (psi) 600 Test Method
    Tensile Strength (psi) 270 Test Method
    Material Resistance
    High Temperature Resistance (°C) 60 Test Method
    Hardness
    Elongation (%) 600
    Other Properties
    Flash Point (°F) 460.4 Test Method
    % Solids (%) 100
    Density (g/cm³) 0.950
    Business Information
    Shelf Life Details When stored at the recommended conditions, this product has a shelf life of 2 years after 3M ships the product to a customer or distributor.
    Shelf Life Temperature (°F) 120
    Shelf Life (mon) 24
  • Best Practices for 3M 3776LM

    *See Terms of Use Below

    1. Surface Preparation

      : Surfaces must be clean, dry and dust free. Wipe with a solvent such as isopropyl alcohol for plastic substrates to aid in removing oil and dirt.

    2. Application

      3M™ Hot Melt Adhesives are designed for application with a 3M™ Hot Melt Applicators. Read and follow the precautions and directions for use in the user’s manual before operating the applicator. 3M™ Hot Melt Adhesives are applied at 350-385°F, except the Low Melt (LM) series which are designed to be applied at 250-275°F. LM series are adhesives designed for lower temperature application but still yield long-lasting bonds.

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    *See Terms of Use Below

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Viscosity Test Methods
Viscosity Test Method Temperature
8,250 cPs Brookfield Thermocel Viscometer in Centipoise using a #27 Spindle @ 10 RPM 121°C
Softening Point Test Methods
Softening Point Unit Test Method
84°C ASTM E-28-99
84°C ASTM E28-67
Work / Pot Time Test Methods
Work / Pot Time Test Method
0.67 min 1/8" semicircular bead on non-metallic substrates at 75°F
Shear Strength Test Methods
Shear Strength Substrate Test Temperature
600 psi Douglas Fir 22°C
Tensile Strength Test Methods
Tensile Strength Test Temperature
270 psi 22°C
Peel Strength Test Methods
Peel Strength Substrate Test Temperature
9 piw Canvas 22°C
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
60°C adhesive will support a 2 psi dead load
Flash Point Test Methods
Flash Point Test Method
238.0°C ASTM D 92-72