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Description for 3M 78ET
Industrial grade, versatile bulk spray adhesive formulated for specific substrates and market needs (soft foams - polystyrene foams). The adhesive is packaged in convenient, portable, no maintenance aerosol cylinders.Application Type Bond 1 Part or 2 Part 1 Part Material Form Liquid, Synthetic elastomer Substrate Acrylic, Aluminum, Fabrics, Soft foams, Polystyrene foams, Wood, Galvanized, Polyethylene, Glass, Metal, Heavy papers, Most plastics, Polypropylene, Concrete, FRP (Fiber Reinforced Plastic), Polystyrene foams, Birch, ABS Industry Refrigerators, Store displays, Motor homes, HVAC Manufacturer 3M Chemistry Synthetic elastomer, Non Flammable Solvent Cure Method Solvent Cure Time (min) Fast, 1.00 to 2.00 Color Green, Clear, Translucent High Temperature Resistance (°C) High temperature resistance Density (g/cm³) 6.12 (lbs/gal)
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Shear Strength Test Methods
| Shear Strength | Type | Substrate | Test Temperature | Test Method |
|---|---|---|---|---|
| 134 psi | Overlap shear strength | ABS to ABS (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 97 psi | Overlap shear strength | ABS to ABS (1 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 167 psi | Overlap shear strength | Acrylic to Acrylic (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 190 psi | Overlap shear strength | Aluminum to Aluminum (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 184 psi | Overlap shear strength | Birch to Birch (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 70 psi | Overlap shear strength | Birch to Birch (1 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 148 psi | Overlap shear strength | Galvanized to Galvanized (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 89 psi | Overlap shear strength | Galvanized to Galvanized (1 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 63 psi | Overlap shear strength | Polyethylene to Polyethylene (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 98 psi | Overlap shear strength | Polypropylene to Polypropylene (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
| 158 psi | Overlap shear strength | FRP (Fiber Reinforced Plastic) to FRP (2 surface adhesive bond) | 24°C | 1 square inch bonds tested at 2 inches per minute separation rate at 75°F (24°) |
Tensile Strength Test Methods
| Tensile Strength | Cure Time | Test Temperature | Test Method |
|---|---|---|---|
| 30 (grams) | 10 min | 93°C | 4 square inch bonds tested with 30 grams hanging in tensile. Temperature is held for 10 minutes and ramped at 10°F increments, until complete failure. |
