Göldo Copper Tape - a strip of copper tape for shielding cavities for pickups and potentiometers in electric guitars, reduces background noise and improves the sound quality produced by the guitar. Self-adhesive, with a width of 12.7 mm. Sold by the metre.
Conducts current from both sides, the adhesive holds and doesn't seem to affect conductivity. Can be easily applied over the existing foil. I recommend.
This is a very good quality copper foil. I've used it on a few electric guitars for shielding the cavities, which eliminated unwanted noises caused by the guitar's electrical components. So I recommend it to all guitarists who haven't shielded their guitar cavities yet. The price-quality ratio... what can I say... excellent!!! I used 4 m of Göldo Copper Tape on an Epiphone Custom. Worth it!