3M EZ250120
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Medium-Set Wood Assembly
- Thin-Bondline Warm Application
- Moisture-Curing One-Part Processing
Product Description
3M Scotch-Weld PUR Easy 250 Wood Adhesive EZ250120 is a one-component, 100% solids moisture-curing polyurethane reactive adhesive for wood, wood-based surfaces, and selected plastics. Applied warm at 121 deg C, its low-viscosity melt is designed for thin glue lines. The supported open-time range is 1.5 to 4 minutes, and the set-time range is 15 to 120 seconds, providing a medium-set process for wood assembly. Cure rate depends on air temperature, relative humidity, substrate type, and bondline thickness. Moisture must reach the bondline; the adhesive is not suitable for metal-to-metal, glass-to-glass, or metal-to-glass bonding because those substrate pairs do not provide enough moisture for cure.
Key features
- Medium-set assembly window: An open time of 1.5 to 4 minutes and a set time of 15 to 120 seconds support efficient wood assembly.
- Thin glue-line processing: A typical viscosity of 3,000 cP at 121 deg C supports controlled application in thin bondlines.
- Moisture-dependent cure: Cures with available moisture, defining suitable substrate pairs and excluding metal-to-metal, glass-to-glass, and metal-to-glass bonds.
Applications
Applications include wood and wood-based assembly, thin glue-line bonding, and selected plastic bonding where the joint and process provide moisture for cure.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Additional Information
As-supplied / before-processing properties
Open and handling times are approximate and depend on adhesive temperature and application conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color, solid | White to off-white | As supplied | |
| Viscosity | 3,000 | cP | 121 deg C; Brookfield Thermosel, spindle No. 27 |
| Density, molten | 8.9 | lb/gal | Typical |
| Solids content | 100 | % | Typical |
| Application temperature | 121 | deg C | 250 deg F |
| Open time | 1.5 to 4 | minutes | Product feature range |
| Set time | 15 to 120 | seconds | Product feature range |
