Bostik Thermogrip 2239

Bostik Thermogrip 2239 Datasheet
  • Description for Bostik Thermogrip 2239

    High performance polyamide hot melt; low application viscosity, high temperature resistance, long open time.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Stick
    Substrate Acrylic, Porous substrates, Metal, ABS, PolyVinyl Chloride, Vinyl, Polycarbonate, Polypropylene, BeechWood, Plastic, Wood
    Industry Door Panel, Filter assembly, Automotive
    Manufacturer Bostik
    Chemistry Hot melt
    Cure Method Hot melt
    Cure Time (min) 1,440
    Viscosity (cPs) Low, 3,900, 6,000
    Color Amber
    Chemical Resistance Acids & Alkalies, Fats & oils, Water
    High Temperature Resistance (°C) 115, High
    Low Temperature Resistance (°C) -18
  • Technical Data for Bostik Thermogrip 2239

    Cure Specs
    Cure Time (min) 1,440
    Viscosity (cPs) Low, 3,900, 6,000 Test Method
    Fixture or Handling Strength Time (min) 1,440
    Softening Point (°C) 140
    Work / Pot Time (min) Long
    Open Time (min) <1.25
    Bond Strength
    Shear Strength (psi) 410, 250, 200, 30, 545 Test Method
    Material Resistance
    Chemical Resistance Acids & Alkalies, Fats & oils, Water
    High Temperature Resistance (°C) 115, High
    Low Temperature Resistance (°C) -18
    Flexibility Good low temperature flexibility
    Other Properties
    Specific Gravity 1.01 (gm/cc) Test Method
    Business Information
    Shelf Life Details Shelf life is one year at 73°F (23°C) in sealed containers., Note: Polyamides slowly absorb moisture/humidity from ambient air which may cause foaming upon melting of the product. Care should be taken to minimize moisture exposure. Keep containers sealed when not in use and store in cool, dry area.
    Shelf Life Temperature (°F) 73
    Shelf Life (mon) 12
  • Best Practices for Bostik Thermogrip 2239

    *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. Bonding some metals is enhanced by pre-warming the surfaces. Pre-warm up to 200°F (95°C) for optimum effect. 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
3,900 cPs 204°C
6,000 cPs 191°C
Shear Strength Test Methods
Shear Strength Substrate
410 psi ABS/ABS
250 psi Acrylic to Acrylic
200 psi Polycarbonate to Polycarbonate
30 psi Polypropylene to Polypropylene
545 psi Beechwood to Beechwood
Specific Gravity Test Methods
Specific Gravity Test Method
1.01 (gm/cc) After 24 Hour Cure