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Description for 3M Scotch-Weld Instant Surface Activator
Liquid chemical products used in conjunction with 3M™ Scotch-Weld™ Instant Adhesives.Application Type Activator, Primer 1 Part or 2 Part 1-Part Material Form Liquid Substrate Polyacrylic Finish, Aluminum, Glass, Metals, Plastic, Rubber, Steel, Steel, Different woods, Dissimilar materials, Porous surfaces, Porous surfaces, Wood, Pine, Poplar, Oak, Maple, Medium Density Fiberboard (MDF), Plywood, Particleboard Manufacturer 3M Chemistry Acetone based Cure Method Solvent Cure Temperature (°C) 20 to 25, 23, 23, 23 Cure Time (min) 1,440, 1,440, 1,440, <0.50 Viscosity (cPs) 10, 450, 2,250, Thin, Medium, Thick, <10 Color Light Amber Density (g/cm³) 7 (weight (lbs/gal)) -
Technical Data for 3M Scotch-Weld Instant Surface Activator
Overview
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Application Type
- Accelerator / Activator - Activator
- Primer
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Substrate
- Porous Substrates - Porous surfaces, Porous surfaces
- Glass
- Dissimilar Substrates - Dissimilar materials
- Metal - Metals
- Aluminum
- Steel
- Plastic
- Acrylic (PMMA) - Polyacrylic Finish
- Rubber
- Wood - Different woods, Pine, Poplar, Oak, Maple, Medium Density Fiberboard (MDF), Plywood, Particleboard
- Other - High Pressure Laminate (HPL)
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Industry
- Furniture / Wood-Working - Repair of cabinets, Repair other wood products, General furniture assembly, Cabinet assembly, Veneer applications, Decorative molding attachment
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Chemistry
- Solvent-Based - Acetone based
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Application Method
- Brush
- Spray - Pump spray
- Other - Wipe
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Cure Method
- Solvent
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Color
- Red - Light Amber
Specifications
Cure Specs
Cure Temperature (°C) 20 to 25, 23, 23, 23 Test Method Cure Time (min) 1,440, 1,440, 1,440, <0.50 Test Method Viscosity (cPs) 10, 450, 2,250, Thin, Medium, Thick, <10 Test Method Fixture or Handling Strength Time (min) Very fast Set Time (min) Faster Bond Strength
Shear Strength (psi) 700, 2,300, 2,300, 500, 2,100, 2,300, 600, 1,900, 1,900, 500, 1,000, 1,100 Test Method Other Properties
Specific Gravity 0.8 (g/mL) Flash Point (°F) -14.8 Density (g/cm³) 7 (weight (lbs/gal)) Business Information
Shelf Life Details Store product in cool, dry area out of direct sunlight. Rotate on a “first in, first out” basis., 3M™ Scotch-Weld™ Instant Adhesive Surface Activator has a shelf life of 24 months when stored in their original unopened containers at 80°F (27°C) or below., Always store adhesive bottle upright to prevent spillage. Clear tip of dispensing nozzle by wiping outside of nozzle to remove excess adhesive with a folded non-cotton cloth or tissue. Recap bottle to keep tightly covered and to minimize moisture exposure. Store at 80°F (27°C) or lower and avoid direct exposure to sunlight., Storage: 3M™ Scotch-Weld™ Surface Activator for 3M cyanoacrylate adhesives should be stored at 80°F (27°C) or lower, out of direct sunlight or other sources of ultraviolet (U.V.) light. Exposure to excessive sunlight or other sources of ultraviolet (U.V.) light can result in loss of activator’s ability to accelerate curing., Shelf Life: This product has a shelf life of one year from date of manufacture., Store product in cool, dry area out of direct sunlight. Shelf Life Temperature (°F) 81, 81 Shelf Life Type Shelf Life Type, From date of manufacture, From the date of shipment Shelf Life (mon) 24, 12, 12 -
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Best Practices for 3M Scotch-Weld Instant Surface Activator
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Surface Preparation
Prepare bonding surfaces according to Surface Preparation recommendations for the cyanoacrylate that will be used.
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Application
Apply activator by wipe, brush, or pump spray.
Allow activator’s solvent to evaporate completely.
Apply cyanoacrylate adhesive within one minute of solvent drying.
Reapply activator if there is a delay greater than one minute between activator drying and cyanoacrylate dispensing.
Note: These products should be tested on substrates before use since their overspray or excess may attack certain substrates (especially some plastics) causing unsightly effects.
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Comparable Materials for 3M Scotch-Weld Instant Surface Activator
Spec Engine® Results
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
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20 to 25°C | |
23°C | Thin, Time to full cure defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate overlap shear strength to aluminum |
23°C | Medium, Time to full cure defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate overlap shear strength to aluminum |
23°C | Thick, Time to full cure defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate overlap shear strength to aluminum |
Cure Time Test Methods
Cure Time | Test Method |
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1,440 min | Thin, Time to full cure defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate overlap shear strength to aluminum |
1,440 min | Medium, Time to full cure defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate overlap shear strength to aluminum |
1,440 min | Thick, Time to full cure defined as the time required for the adhesive to achieve a minimum of 80% of its ultimate overlap shear strength to aluminum |
<0.50 min |
Viscosity Test Methods
Viscosity | Test Method | Temperature |
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10 cPs | Thin, Viscosity determined with Brookfield viscometer with spindle #1 @ 60 rpm (Thin), #2 @ 30 rpm (Medium) and #2 @ 6 rpm (Thick) at 77°F (25°C) | 23°C |
450 cPs | Medium, Viscosity determined with Brookfield viscometer with spindle #1 @ 60 rpm (Thin), #2 @ 30 rpm (Medium) and #2 @ 6 rpm (Thick) at 77°F (25°C) | 23°C |
2,250 cPs | Thick, Viscosity determined with Brookfield viscometer with spindle #1 @ 60 rpm (Thin), #2 @ 30 rpm (Medium) and #2 @ 6 rpm (Thick) at 77°F (25°C) | 23°C |
Thin | ||
Medium | ||
Thick | ||
<10 cPs | Viscosity measured by Brookeld Viscometer RVT Spindle #1 @ 30 rpm, uncured |
Shear Strength Test Methods
Shear Strength | Type | Cure Time | Substrate | Test Method |
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700 psi | Overlap shear strength | 1.00 to 2.00 min | Steel | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive CA5 |
2,300 psi | Overlap shear strength | 60 min | Steel | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive CA5 |
2,300 psi | Overlap shear strength | 1,440 min | Steel | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive CA5 |
500 psi | Overlap shear strength | 1.00 to 2.00 min | Steel | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive Gel CA50 |
2,100 psi | Overlap shear strength | 60 min | Steel | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive Gel CA50 |
2,300 psi | Overlap shear strength | 1,440 min | Steel | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive Gel CA50 |
600 psi | Overlap shear strength | 1.00 to 2.00 min | Aluminum | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive CA5 |
1,900 psi | Overlap shear strength | 60 min | Aluminum | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive CA5 |
1,900 psi | Overlap shear strength | 1,440 min | Aluminum | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive CA5 |
500 psi | Overlap shear strength | 1.00 to 2.00 min | Aluminum | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive Gel CA50 |
1,000 psi | Overlap shear strength | 60 min | Aluminum | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive Gel CA50 |
1,100 psi | Overlap shear strength | 1,440 min | Aluminum | Overlap shear bonds were made (per ASTM-D-1002) on steel and aluminum substrates. Substrates were 1 in. wide by 4 in. long by .060 in. thick/ over-lapped 1/2 in. The 1/2 in. bond area was abraded with #280 sandpaper and wiped with Methyl Ethyl Ketone (MEK). Activator was brush applied to one side of the bond area and the Scotch-Weld instant adhesive CA applied to the other and the bond made. Scotch-Weld instant adhesive Gel CA50 |

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