| Application Type | Bond |
|---|---|
| 1 Part or 2 Part | 1 Part |
| Material Form | Liquid |
| Substrate | Composite substrates, Porous substrate surfaces, Combination with metal, Nylon, Paper, Difficult-to-bond plastic substrates, polypropylene, Heavily plasticized PVC, Rubber parts that do not fit well together, ABS, Difficult-to-bond rubber substrates, Low surface energy plastics |
| Manufacturer | 3M |
| Chemistry | Cyanoacrylate, Ethyl Hybrid |
| Cure Method | Moisture |
| Cure Time (min) | 1,440 |
| Viscosity (cPs) | very high, 1,275 to 1,650, 1,200 to 1,700 |
| Color | Clear |
| Chemical Resistance | Excellent, Most oils |
| High Temperature Resistance (°C) | 82 |
| Low Temperature Resistance (°C) | -53 |
| Key Specifications | CID (United States Government Commercial Item Description): A-A-3097: Type II, Class 3 |
For optimum strength structural bonds, paint, oxide films, oils, dust, mold release agents, and all other surface contaminants must be completely removed. However, the amount of surface preparation depends on the required bond strength and the environmental aging resistance desired by the user. Typical quick surface preparation would include wiping with a clean solvent (such as isopropyl alcohol), abrading the surface with a clean fine abrasive, and then wiping again with a clean solvent to remove loose particles.
Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.
Ensure that parts are clean, dry, and free from oil and grease.
A instant adhesive activator may be required if there are bonding gaps or porous substrate surfaces, if substrates are low surface energy plastics (e.g., polyethylene, polypropylene) or if substrates have acidic surfaces (e.g., paper, leather).
Bond speed is typically very fast so ensure that parts are properly aligned before dispensing.
Product is normally hand applied from the bottle. Apply sparingly to one surface and press parts firmly together until handling strength is achieved. As a general rule, as little cyanoacrylate as possible should be used. Over application will result in slower cure speed and lower bond strength.
Full bond strength will typically be achieved within a 24 hour cure time.
Low humidity or low temperature conditions will slow down the cure rate
After curing, 3M™ Scotch-Weld™ Plastic and Rubber Instant Adhesive bonds are suitable for use up to about 180°F (82°C). At 180°F (82°C) the bonds will be approximately 70% of the strength at room temperature and at 212°F (100°C) about 50% of full strength.
Cyanoacrylate bond resistance to most oils and solvents is excellent. Long term humidity, moisture, or water immersion may affect the strength of a cured cyanoacrylate bond depending on the substrates and the bond gap. Testing is recommended to evaluate the effect
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| Fixture or Handling Strength Time | Fixture-Handling Strength Test Method |
|---|---|
| 0.33 to 1.67 min | |
| <0.75 min | On EPDM. Time to handling is substrate dependent. |
| Viscosity | Test Method |
|---|---|
| very high | |
| 1,275 to 1,650 cPs | Brookfield LVF, Spindle 3 @ 30 rpm. |
| 1,200 to 1,700 cPs | Cone-Plate viscosity, CP50 at 100/s shear rate |
| Tensile Strength | Test Method |
|---|---|
| 2,900 psi | ISO 6922 (grit-blasted steel). |
| Shear Strength | Type | Substrate | Test Method |
|---|---|---|---|
| 2,100 psi | Overlap Shear Strength | Steel | ASTM D-1002; Grit blasted |
| 2,950 psi | Overlap Shear Strength | Stainless Steel | ASTM D-1002; Grit blasted |
| 2,387 psi | Overlap Shear Strength | Aluminum | ASTM D-1002; Grit blasted |
| 1,400 psi | Overlap Shear Strength | ABS | ASTM D-1002; Substrate failure |
| 700 psi | Overlap Shear Strength | Polycarbonate | ASTM D-1002; Substrate failure |
| 1,000 psi | Overlap Shear Strength | PVC | ASTM D-1002; Substrate failure |
| 600 psi | Overlap Shear Strength | Nylon | ASTM D-1002 |
| 600 psi | Overlap Shear Strength | Polypropylene | ASTM D-1002; Substrate failure; Primed with AC77 |
| 100 psi | Overlap Shear Strength | Silicone Elastomer | ASTM D-1002; Substrate failure; Primed with AC79 |
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