Brand: 3M™ Scotch-Weld™
Product Number: 3764
Technologies: Hot Melt Adhesive
Color: Clear
Cure Type: Thermoplastic (Hot Melt)
Package Sizes:
Shelf Life: 24 months
3M™ Hot Melt Adhesive 3764 is a 100% solids, thermoplastic adhesive designed for fast, reliable bonding of plastics, wood, corrugated materials, fabrics, foams, and other lightweight materials. It provides low-temperature flexibility and excellent plastic bonding capabilities, including ABS, PVC, polycarbonate, polypropylene, and polyethylene. The adhesive melts and flows when heated, ensuring quick wetting, fast bonding, and high-strength adhesion. Once cooled, it forms a durable and impact-resistant bond.
| Attribute Name | Test Method | Temperature | Value |
|---|---|---|---|
| Color | – | – | Clear |
| Density | – | – | 0.95 g/cm³ (0.034 lb/in³) |
| Open Time | OSB | – | 40 s¹ |
| Flash Point | ASTM D92-72 | – | 268°C (514°F)² |
| Delivery Time | – | – | 55 s³ |
| Viscosity | Brookfield Thermocel Viscometer (#27 Spindle @ 10 RPM) | 191°C (375°F) | 6,000 cP⁴ |
¹ Open time depends on substrate, environmental temperature, and adhesive application thickness.
² Measured using the Cleveland Open Cup method.
³ Time required to extrude a 25 x 76 mm (1 x 3 in) PG cartridge.
⁴ Viscosity measured at 191°C (375°F).
| Attribute Name | Test Method | Temperature | Substrate | Value |
|---|---|---|---|---|
| 180° Peel Adhesion | – | 23°C (73°F) | Flexible Canvas to Douglas Fir | 25 N/cm (224 oz/in) |
| Overlap Shear Strength | – | 23°C (73°F) | Douglas Fir | 27 kg/cm² (390 lb/in²) |
| Ball & Ring Melt Point | ASTM E28-67 | – | – | 88°C (190°F) |
| Application Temperature | – | – | – | 177 – 196°C (350 – 385°F)¹ |
| Temperature Resistance | – | – | – | 60°C (140°F)² |
¹ Recommended application temperature for optimal performance and viscosity control.
² Maximum temperature at which the adhesive supports a 14 kPa (2 psi) dead load.
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