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Description for Bostik Thermogrip 2391
General purpose, medium open time hot melt; withstands elevated temperatures; good cold resistance.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
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Water
- Chemical Resistance - Alkalies, Fats & oils
- Chemical Resistance : Acid Resistance - Acids
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 1-Part
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Material Form
- Stick
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Industry
- Food & Beverage - Food
- Industrial - Carton, Case
- Furniture / Wood-Working - Board, Cabinet
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Chemistry
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Cure Method
- Hotmelt - Hot melt
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Color
- Brown - Light Tan
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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 -
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Best Practices for Bostik Thermogrip 2391
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Surface Preparation
All surfaces should be clean and free of contaminants. If necessary, clean surfaces with solvent.
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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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Comparable Materials for Bostik Thermogrip 2391
Spec Engine® Results
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Viscosity Test Methods
Viscosity | Temperature |
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1,900 cPs | 177°C |
Peel Strength Test Methods
Peel Strength | Substrate |
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4.0 (lbs./linear inch) | Canvas |
Shear Strength Test Methods
Shear Strength | Substrate |
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300 psi | Plywood |
Specific Gravity Test Methods
Specific Gravity | Test Method |
---|---|
0.958 (gm/cc) | After 24 Hour Cure |