Therefore, we have developed an exceptional product - K2 Sigma, which provides an excellent tire appearance. Sigma is a combination of various precious oils and synthetic polymers, which leave a deep shine, a beautiful black color, and a special tire protection against fading, cracking and premature aging. It is very easy to handle and leaves no streaks. The water-resistant and transparent protective layer formed on the surface of the tire after application, remains even after series of rain pour. In regular applications, the effect persists even up to a few weeks.