3M™ Cleanroom High Temperature ESD Tape 1258 is a translucent, polyimide film tape with silicone adhesive with unique and extremely low electrostatic discharge properties. For gold tab protection during wave soldering of printed circuit boards.
FEATURES
- Product is packaged in cleanroom.
- Rolls are wound onto plastic cores and bagged with Class 100 clean film.
- 3M tape 1258 employs a proprietary technology that results in extremely low electrostatic discharge at unwind and removal from the PWB.
- At room temperature the properties of polyimide and polyester film are similar. However, as the temperature increases or decreases, the properties of the polyimide film are less affected than polyester.
- Polyimide film does not soften at elevated temperatures; thus, the film provides an excellent release surface at elevated temperatures.
APPLICATIONS
- Mask for printed circuit boards during wave solder or solder dip process.
- Used as release surface in fabrication of parts cured at elevated temperatures.
| Property | Values | Unit | Test Method |
| Adhesion to Steel | 22 | N/dm | D-3330 |
| Tensile Strength at Break | 578 | N/dm | D-3759 |
| Elongation at Break | 60 | % | D-3759 |
| Backing Thickness | 1.0 | mil | D-3652 |
| Total Tape Thickness | 2.7 | mil | D-3652 |
| Temperature Use Range | 100 to 500 | °F | – |
| Dielectric Strength | 7000 | volts | – |
| Insulation Resistance | > 1 x 106 | ohms | – |
