A coated string for a stringed device which includes a coating applied to the surface of the string. The coating includes a base layer bonded to the surface of the string and an at least partially transparent low-friction top coat applied to the base layer. The base layer includes heat activated pigments...http://www.google.com.au/patents/US7714217?utm_source=gb-gplus-sharePatent US7714217 - Marked precoated strings and method of manufacturing same
