Brand: 3M™
Product Number: 3792LM
Technologies: Hot Melt Adhesive
Color: Clear
Cure Type: Thermoplastic (Hot Melt)
Package Sizes:
Shelf Life: 24 months
3M™ Hot Melt Adhesive 3792LM is a 100% solids, thermoplastic adhesive that becomes fluid when heated, allowing it to quickly wet bonding surfaces. It cools, hardens, and reaches bond strength in seconds, eliminating the need for clamps, fixturing, and drying time. The Low Melt (LM) formulation enables lower temperature application, making it ideal for heat-sensitive substrates such as coated papers, foams, plastics, and lightweight materials.
| Attribute Name | Test Method | Temperature | Value |
|---|---|---|---|
| Color | – | – | Clear |
| Density | – | – | 1.01 g/cm³ (0.036 lb/in³) |
| Open Time | OSB | – | 40 s¹ |
| Flash Point | ASTM D92-72 | – | >232°C (>450°F)² |
| Delivery Time | – | – | 57 s³ |
| Viscosity | Brookfield Thermocel Viscometer (#27 Spindle @ 10 RPM) | 121°C (250°F) | 10,500 cP⁴ |
¹ Open time is based on a 3.2 mm (1/8 in) semicircular bead on non-metallic substrates at 24°C (75°F).
² Measured using the Cleveland Open Cup method.
³ Extrusion time for one 25 x 76 mm (1 x 3 in) PG cartridge.
⁴ Viscosity measured using Brookfield viscometer.
| Attribute Name | Test Method | Temperature | Substrate | Value |
|---|---|---|---|---|
| 180° Peel Adhesion | – | 23°C (73°F) | Flexible Canvas to Douglas Fir | 208 oz/in |
| Overlap Shear Strength | – | 23°C (73°F) | Douglas Fir | 350 lb/in² |
| Ball & Ring Melt Point | ASTM E28-67 | – | – | 81°C (178°F) |
| Application Temperature | – | – | – | 121 – 132°C (250 – 270°F)¹ |
| Temperature Resistance | – | – | – | 60°C (140°F)² |
¹ Recommended application temperature range to regulate viscosity, delivery rate, and pot life.
² Maximum temperature at which the adhesive supports a 14 kPa (2 psi) dead load.
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