• Description for 3M 847H

    Is a high viscosity grade adhesive for many brush or flow applications requiring gap filling or reduced soak-in.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate Nylon, Most Plastics, Nitrile Rubber, Rubber, Canvas Steel , Porous Surface
    Manufacturer 3M
    Chemistry Acetone
    Application Method Spatula, Trowel
    Cure Method Heat cure, Solvent, Room temperature aged for 3 week
    Cure Temperature (°C) 93, 115, 138, 160, 182, 204
    Cure Time (min) >120, >40, >12, >8, >5.00, >2.00
    Viscosity (cPs) High, 35,000 to 90,000
    Color Dark Brown
    Chemical Resistance Excellent resistance to many oils, Excellent resistance to many fuels, ketone
    Relative Solvent Resistance Chemical Resistance: Aromatic solvents
    High Temperature Resistance (°C) >82
    Low Temperature Resistance (°C) -1, 24
  • Technical Data for 3M 847H

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
      • Porous Substrates - Porous Surface
      • Steel - Canvas Steel
      • Plastic - Most Plastics
      • Nylon
      • Rubber
      • Nitrile Rubber
      • Other - Gasket, Bond leather
    • Industry
      • Other - Requiring reduced soak-in, Many brush applications , Many flow applications , Requiring gap filling
    • Chemistry
    • Application Method
      • Dispenser - Application equipment
      • Brush
      • Spray
      • Flow - Flow equipment
      • Spatula/Trowel - Spatula, Trowel
    • Cure Method
      • Room Temperature / Air Dry - Room temperature aged for 3 week
      • Solvent
      • Heat - Heat cure
    • Color
      • Brown - Dark Brown
    Specifications
    Cure Specs
    Application Temperature (°F) 64
    Cure Temperature (°C) 93, 115, 138, 160, 182, 204 Test Method
    Cure Time (min) >120, >40, >12, >8, >5.00, >2.00 Test Method
    Viscosity (cPs) High, 35,000 to 90,000 Test Method
    Fixture or Handling Strength Time (min) <10 Test Method
    Dry Time (min) Quick
    Bond Strength
    General Bond Strength (psi) Strong, Greater
    Peel Strength (piw) 13, 24, 28, 31, 35, 40, 20, 16, 9 Test Method
    Shear Strength (psi) 152, 200, 20, 9 Test Method
    Material Resistance
    Chemical Resistance Excellent resistance to many oils, Excellent resistance to many fuels, ketone
    Relative Solvent Resistance Chemical Resistance: Aromatic solvents
    High Temperature Resistance (°C) >82
    Low Temperature Resistance (°C) -1, 24
    Hardness
    Flexibility Flexible
    Other Properties
    Flash Point (°F) -0.4 Test Method
    % Solids (%) 50, 46 to 55 Test Method
    Business Information
    Shelf Life Details Storage: Store product at 60-80°F (15-27°C) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperatures cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis.;Shelf Life: When stored in the original unopened container, under the conditions recommended, these products have a shelf life from date of shipment as follows:3M™ Scotch-Grip™ Rubber & Gasket Adhesive 847-H 7 months, Store product at 60-80°F (15-27°C) for maximum storage life. Higher temperatures reduce normal storage life. Lower temperatures cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis.; When stored in the original unopened container, under the conditions recommended, these products have a shelf life from date of manufacture
    Shelf Life Temperature (°F) 59 to 81, 59 to 81
    Shelf Life Type From date of shipment, From date of manufacture
    Shelf Life (mon) 7, 24
  • Best Practices for 3M 847H

    *See Terms of Use Below

    1. Surface Preparation

      Remove all dust, dirt, oil, grease, wax, loose paint, etc. Wiping with a solvent such as methyl ethyl ketone (MEK) or 3M™ Citrus Base Cleaner will aid in preparing the surface for bonding.

      When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.

    2. Application

      For best results the temperature of the adhesive and surfaces to be bonded should be at least 65°F (18°C).

      Stir well before using.

      Porous Surface(s): Brush, flow or spray a thin, even coat of adhesive to one or both surfaces. Coating both surfaces is preferred since it gives greater strength and permits longer open time before bonding. Very absorbent materials may require more than one coat. Bond while adhesive is still wet or aggressively tacky. Join surfaces with firm pressure.

      Non-Porous Surfaces: Brush, flow or spray a thin, even coat of adhesive to both surfaces. Allow adhesive to dry until tacky. Join surfaces with firm pressure.

    3. Curing

      Drying time depends on temperature, humidity, air movement, and porosity of the materials bonded. Greater immediate strength may be obtained by heat or solvent reactivation.

      Reactivation: To solvent reactivate, coat both surfaces with adhesive. Allow to dry tack-free. Lightly wipe one surface with a solvent such as Methyl Ethyl Ketone (MEK).* Complete bond within 30 seconds. To heat activate, coat both surfaces with adhesive. Allow adhesive to dry completely. Reactivate by heating one or both surfaces to a minimum of 180°F (82°C). Assemble immediately (while hot), using firm pressure to ensure contact.

    4. Clean-Up

      Excess adhesive may be removed with a solvent such as methyl ethyl ketone (MEK) or acetone, preferably while adhesive is still wet.

      When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.

  • Comparable Materials for 3M 847H

    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
93°C Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
115°C Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
138°C Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
160°C Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
182°C Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
204°C Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
Cure Time Test Methods
Cure Time Test Method
>120 min Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
>40 min Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
>12 min Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
>8 min Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
>5.00 min Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
>2.00 min Cure assembled parts at time and temperature listed using 100 psi pressure on the bond line.
Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time Fixture-Handling Strength Test Method
<10 min 10 mil wet film 2 surfaces
Viscosity Test Methods
Viscosity Test Method Temperature
High
35,000 to 90,000 cPs Brookfield RVF, #6 sp @ 4 rpm 27°C
Shear Strength Test Methods
Shear Strength Type Cure Time Cure Temperature Substrate Test Temperature
152 psi Overlap shear strength 30,240 min 25°C Room Temperature 1/8 in. - 1/8 in. Birch 1°C
200 psi Overlap shear strength 30,240 min 25°C Room Temperature 1/8 in. - 1/8 in. Birch 14°C
20 psi Overlap shear strength 30,240 min 25°C Room Temperature 1/8 in. - 1/8 in. Birch 66°C
9 psi Overlap shear strength 30,240 min 25°C Room Temperature 1/8 in. - 1/8 in. Birch 82°C
Peel Strength Test Methods
Peel Strength Type Cure Time Cure Temperature Substrate Test Temperature
13 piw 180° Peel strength 1,440 min 14°C Canvas-Steel 14°C
24 piw 180° Peel strength 4,320 min 14°C Canvas-Steel 14°C
28 piw 180° Peel strength 7,200 min 14°C Canvas-Steel 14°C
31 piw 180° Peel strength 10,080 min 14°C Canvas-Steel 14°C
35 piw 180° Peel strength 20,160 min 14°C Canvas-Steel 14°C
40 piw 180° Peel strength 30,240 min 14°C Canvas-Steel 14°C
20 piw 180° Peel strength 30,240 min 1°C Canvas-Steel 1°C
16 piw 180° Peel strength 30,240 min 66°C Canvas-Steel 66°C
9 piw 180° Peel strength 30,240 min 82°C Canvas-Steel 82°C
Flash Point Test Methods
Flash Point Test Method
-18.0°C Closed up
% Solids Test Methods
% Solids Test Method
50 % By weight
46 to 55 % By weight
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