Actually I wanted to purchasable from the same manufacturer "Contact tuner Spray 'order as a replacement. Unfortunately, I had overlooked the "plus" (+ oil), and thus get an unusable for the intended application product.
However, the subsequent different use for the contact recovery in light switches, contact clamps on car batteries o. Ä. Proved the universal usefulness, not least because of the high-quality oil, the rest of the electrical contact area
