3M™ Bonding Film 620 is a three layer bonding film consisting of a 2 mil polyester film core coated both sides with 2 mils of a polyester based thermoplastic adhesive. This bonding film exhibits good adhesion to a variety of substrates while also providing a dielectric insulating layer.
FEATURES
- Provides dielectric insulating layer
- 100% solids
- Consistent, uniform adhesive thickness
- Excellent adhesion to many substrates
- Quick fixturing/holding strength
- Suitable for die cutting
| Property | Values |
| Color | Translucent |
| Liner Thickness | 3 mil (.003 in. [0.08 mm]) (nominal) |
| Solids | 100% |
| Ball and Ring Softening Range (Adhesive) | 116 to 123°C |
| 240 to 250°F | |
| Tensile Strength @ Break | 9000 psi |
| Elongation @ Break | 100% |
| Two Lb Dead Load Heat Resistance | 215°F (102°C) |
| Shelf Life | 2 years |
