3M 3792LM
Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics
Main features
- 121 to 132 deg C Application Range
- 350 psi Typical Douglas Fir Overlap Shear
- 40-Second Open Time
Product Description
3M Hot Melt Adhesive 3792LM is a clear, 100% solids thermoplastic hot-melt adhesive applied at 121 to 132 deg C for bonding heat-sensitive materials. Typical viscosity is 10,500 cP at 121 deg C, and typical open time is 40 seconds for a 3.2 mm semicircular bead on a nonmetallic surface at 24 deg C. It bonds wood, plain and coated corrugated board, foams, and many plastics. Typical overlap shear on Douglas fir is 350 psi at 23 deg C, while a separate temperature-resistance test gives 60 deg C under a 14 kPa dead load.
Key features
- Low-temperature application: The recommended 121 to 132 deg C application range is intended for heat-sensitive bonding materials.
- 40-second open time: The typical maximum application-to-joining interval uses a 3.2 mm semicircular bead on a nonmetallic surface at 24 deg C.
- 350 psi Douglas fir overlap shear: Typical bond strength is measured at 23 deg C on Douglas fir.
Applications
Cabinetry and woodworking; coated-paper and polyolefin bonding; furniture and upholstery; foams and other heat-sensitive materials; point-of-purchase displays; general industrial assembly.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Chemical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
Values are typical and not specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Clear | - | Solid adhesive |
| Density | 1.01 | g/cm^3 | Solid adhesive |
| Recommended application temperature | 121 to 132 | deg C | Low-melt application |
| Viscosity | 10,500 | cP | 121 deg C; Brookfield Thermocel #27 at 10 rpm |
| Open time | 40 | s | 3.2 mm bead on nonmetallic substrate at 24 deg C |
| Delivery time | 57 | s | 25 x 76 mm PG cartridge |
After-processing / final-state properties
Values are typical and not specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Heat resistance | 60 | deg C | Highest temperature supporting a 14 kPa dead load |
| Ball and ring melt point | 81 | deg C | ASTM E28-67 |
| Overlap shear strength | 350 | psi | Douglas fir bonded to Douglas fir |
| Peel strength | 13 | piw | Flexible canvas bonded to Douglas fir |
