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Description for 3M 847L
• Low viscosity grade adhesive for many brush or spray applications • Quick drying • Excellent resistance to many fuels and oils • Bond leather, nitrile rubber, most plastics, gasketing materials to a variety of substrates •Chemical Resistance Chemical Resistance: Aromatic solvents, Oil, Chemical Resistance: Ketone, Fuel Application Type Bond 1 Part or 2 Part 1-Part Material Form Liquid Substrate Nitrile Rubber, Nylon, Plastic, Rubber, Canvas Steel , Most metals, Brass, Nitrile Rubber, Teflon, Particularly steel Manufacturer 3M Chemistry Methacrylate esters Application Method Spatula, Trowel Cure Method Heat, Solvent Cure Temperature (°C) 93, 115, 138, 160, 182, 204 Cure Time (min) Quick, , >120, >40, >12, >8, >5.00, >2.00 Viscosity (cPs) Low, 175 to 350 Color Brown High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -18, 24 Density (g/cm³) 7.2 to 7.4 (weight (lbs/gal)) -
Technical Data for 3M 847L
Overview
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Chemical Resistance
- Chemical Resistance - Fuel, Oil
- Chemical Resistance : Relative Solvent Resistance - Aromatic solvents, Ketone
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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
- Liquid
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Chemistry
- Acrylic - Methacrylate esters
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Application Method
- Spray
- Flow - Flow equipment
- Spatula/Trowel - Spatula, Trowel
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Cure Method
- Solvent
- Heat
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Color
- Brown
Specifications
Cure Specs
Cure Temperature (°C) 93, 115, 138, 160, 182, 204 Test Method Cure Time (min) Quick, >120, >40, >12, >8, >5.00, >2.00 Test Method Viscosity (cPs) Low, 175 to 350 Test Method Fixture or Handling Strength Time (min) <20 Test Method Bond Strength
General Bond Strength (psi) Strong 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
High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -18, 24 Hardness
Flexibility Flexible Other Properties
Flash Point (°F) -0.4 Test Method % Solids (%) 24, 22 to 26 Test Method Density (g/cm³) 7.2 to 7.4 (weight (lbs/gal)) 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-L 15 months. Shelf Life Temperature (°F) 59 to 81 Shelf Life Type from date of shipment Shelf Life (mon) 15 -
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Best Practices for 3M 847L
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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.
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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.
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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.
See Vendor Technical Data Sheet for more info.
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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.
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
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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 |
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Quick | |
>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 |
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<20 min | 10 mil wet film 2 surfaces |
Viscosity Test Methods
Viscosity | Test Method | Temperature |
---|---|---|
Low | ||
175 to 350 cPs | Brookfield RVF @ 80°F 27°C #2 sp @ 20 rpm | 27°C |
Shear Strength Test Methods
Shear Strength | Type | Cure Time | Cure Temperature | Substrate | Test Temperature |
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152 psi | Overlap shear strength | 30,240 min | 25°C | 1/8 in. - 1/8 in. Birch | 1°C |
200 psi | Overlap shear strength | 30,240 min | 25°C | 1/8 in. - 1/8 in. Birch | 14°C |
20 psi | Overlap shear strength | 30,240 min | 25°C | 1/8 in. - 1/8 in. Birch | 66°C |
9 psi | Overlap shear strength | 30,240 min | 25°C | 1/8 in. - 1/8 in. Birch | 82°C |
Peel Strength Test Methods
Peel Strength | Type | Cure Time | Cure Temperature | Substrate | Test Temperature |
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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 | 14°C | Canvas-Steel | 1°C |
16 piw | 180° Peel strength | 30,240 min | 14°C | Canvas-Steel | 66°C |
9 piw | 180° Peel strength | 30,240 min | 14°C | Canvas-Steel | 82°C |
Flash Point Test Methods
Flash Point | Test Method |
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-18.0°C | Closed up |
% Solids Test Methods
% Solids | Test Method |
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24 % | By weight |
22 to 26 % | By weight |