Finger Stock EMI Gaskets:
Adhesive Mounting of EMI Gaskets
Leader Tech tape mounted BeCu gaskets offer pressure-sensitive, double-sided adhesive for strong bonding to a wide variety of surface conditions. Ideal for all-purpose contact strips used in metal cabinets and electronic enclosures and is unaffected by temperatures from -67 to +250°F (-55 to 121°C).
Simply follow these four easy steps:
- Remove all grease and oily residue with a solvent such as isopropyl alcohol/water mixture (rubbing alcohol) or heptane. Dry and smooth the mounting surface with emery cloth if necessary.
- Peal off the protective paper backing from the 3M adhesive tape.
- Place the gasket in correct position. Press firmly to ensure a good bond to surface. Avoid repositioning, which might impair the effectiveness of the adhesive or may bend or kink the strip. NOTE: On strips where fingers cover the solid portion of the gasket, pressure may be applied by inserting a mandrel in the strip and pressing down.
- At room temperature approximately 50% of the ultimate strength will be achieved after 20 minutes, 90% after 24 hours, and 100% after 72 hours. In some cases bond strength can be increased and ultimate bond strength can be achieved more quickly by exposure of the bond to elevated temperature, e.g., 150°F (66°C) for 1 hour.
The Leader Tech family of 3M taped shielding gaskets is solvent, moisture and temperature tolerant, and performs well in shear/wipe and compression applications of all kinds. The 3M adhesive meets a number of specs including Mil Standard. For further information please consult the factory.