Source: Press Release, Last Accessed: 2016/09/22

Japanese cable and accessories experts Furutech add to their acclaimed range of static charge eliminators with the new SK-Filter, conveniently designed to remove unwanted static build-up from the surface of records as they play.
It’s an unfortunate fact that as vinyl records spin on turntables, friction with the air causes them to constantly gain a static charge. In fact, a record’s level of frictional static electricity can reach up to anywhere between 3,000V and 20,000V. This electrostatic noise interference is compromising the sound quality. Furutech’s SK-Filter solves the problem "in situ". As the record spins on the turntable, this device removes static electricity.
According to the press release, the SK-Filter uses a patented material, Thunderon, which consists of a very fine acrylic fiber chemically bonded with copper sulfide. The resulting conductive filament has the ability to discharge static electricity into the air whenever static-charged material approaches – so the SK-Filter’s fibers do not need to touch the record. Rather, they are positioned a millimeter or two above the record’s surface thanks to an easy-to-use stand which is fully adjustable to complement a wide range of turntable set-ups.
In developing the SK-Filter, Furutech’s audio design team undertook their usual process of painstaking research and development. Thunderon was crafted into a thread-like material, strands of which were then knitted together to form the brush’s fibers. The precise combination of fiber length, quantity and density specifically required to effectively eliminate static from the surface of a record was exhaustively tested to identify the perfect balance. "The result is silence", says Furutech. In eliminating surface static, the SK-Filter reduces the noise floor, allowing the listener to enjoy his music on vinyl with full, unrestrained resolution.

For more information: http://www.furutech.com/

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