Bostik Thermogrip 2391

Bostik Thermogrip 2391 Datasheet
  • Description for Bostik Thermogrip 2391

    General purpose, medium open time hot melt; withstands elevated temperatures; good cold resistance.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Stick
    Substrate Fabric, Foam, Porous, Plastic, CardBoard, PlyWood, Wood
    Industry Food
    Manufacturer Bostik
    Chemistry Hot melt
    Cure Method Hot melt
    Cure Time (min) 1,440
    Viscosity (cPs) 1,900
    Color Light Tan
    Chemical Resistance Acids & Alkalies, Chemical resistance, Fats & oils, Water
    High Temperature Resistance (°C) 71
    Low Temperature Resistance (°C) -29
    Key Specifications FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency): FDA 21 CFR 175.105
  • Technical Data for Bostik Thermogrip 2391

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Stick
    • Substrate
      • Foam
      • Porous Substrates - Porous
      • Plastic
      • Wood - CardBoard, PlyWood
      • Fabric
      • Other - Canvas
    • Industry
    • Chemistry
    • Cure Method
      • Hotmelt - Hot melt
    • Color
      • Brown - Light Tan
    • Key Specifications
      • FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency): 175.105 - FDA 21 CFR 175.105
    Specifications
    Cure Specs
    Cure Time (min) 1,440
    Viscosity (cPs) 1,900 Test Method
    Fixture or Handling Strength Time (min) 1,440
    Softening Point (°C) 95 to 99
    Work / Pot Time (min) Medium
    Open Time (min) 0.67
    Bond Strength
    Peel Strength (piw) 4.0 (lbs./linear inch) Test Method
    Shear Strength (psi) 300 Test Method
    Material Resistance
    Chemical Resistance Acids & Alkalies, Chemical resistance, Fats & oils, Water
    High Temperature Resistance (°C) 71
    Low Temperature Resistance (°C) -29
    Other Properties
    Specific Gravity 0.958 (gm/cc) Test Method
    Business Information
    Shelf Life Details 999 days @ 73.4°F (23°C). Shipping and storage: Between 40°F to 95°F (4°C to 35°C)
    Shelf Life Temperature (°F) 73
    Shelf Life (mon) 33
  • Best Practices for Bostik Thermogrip 2391

    *See Terms of Use Below

    1. Surface Preparation

      All surfaces should be clean and free of contaminants. If necessary, clean surfaces with solvent.

    2. Application

      Apply the adhesive to the more difficult-to-bond surface. In general, hard, smooth surfaces are more difficult to bond than rough, porous surfaces. “Open-time” varies depending on application temperature, amount of adhesive applied, type of substrate and ambient temperature conditions. Mate the surfaces to be bonded as quickly as possible after adhesive has been applied for optimum bond strength. Use firmest pressure practical for object being bonded. Do not move or adjust surfaces after contact has been made, as inferior bond strength will result. Typically, a properly formed hot melt adhesive bond will achieve 50% of its strength after 1 minute, 75% after 1 hour, and 100% after 1 day.

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Viscosity Test Methods
Viscosity Temperature
1,900 cPs 177°C
Shear Strength Test Methods
Shear Strength Substrate
300 psi Plywood
Peel Strength Test Methods
Peel Strength Substrate
4.0 (lbs./linear inch) Canvas
Specific Gravity Test Methods
Specific Gravity Test Method
0.958 (gm/cc) After 24 Hour Cure