Bostik Thermogrip 2391 Datasheet Bostik Thermogrip 2391

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  • Description for Bostik Thermogrip 2391

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

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    Chemical Resistance Chemical resistance, Chemical Resistance: Acids, Chemical Resistance: Fluid Resistance: Water, Fats & oils, Alkalies
    Application Type Bond
    1 Part or 2 Part 1-Part
    Material Form Stick
    Substrate Fabric, CardBoard, Plastic, PlyWood, Porous, Foam, Wood
    Industry Food
    Manufacturer Bostik
    Chemistry Hot melt
    Cure Method Hot melt
    Cure Time (min) 1,440
    Viscosity (cPs) 1,900
    Color Light Tan
    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

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    Overview
    • Chemical Resistance
      • Chemical Resistance : Fluid Resistance : Water Resistance - Water
      • Chemical Resistance - Alkalies, Fats & oils
      • Chemical Resistance : Acid Resistance - Acids
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Stick
    • Substrate
    • 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
    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

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    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.

  • Comparable Materials for Bostik Thermogrip 2391

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    Spec Engine® Results

    • Bostik
      Thermogrip 2124(Bostik)

      Flexible hot melt adhesive, long set time, designed for high performance bonding of difficult substrates or substrate combinations.

    • Bostik
      Thermogrip 2107(Bostik)

      Tough, medium setting, versatile hot melt adhesive, good "idling" performance in most glue guns, low odor.

    • Bostik
      Thermogrip 2109(Bostik)

      Medium-setting hot melt adhesive, economical with low viscosity and quick grab ability very good "gunability" in stick form.

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