Original colors LAST for MUCH Longer: Have you noticed that color of printing logo in your sign is fading? . Most neon signs with a printing board in current market are made with a rather regular printing on a board, a large part of these signs’ logos were even simply printed on a rather outdated self-stick label, whose color will gradually fade within 4 to 10 months. While our neon signs with unique HD vivid printing will keep the original color for at least 3 to 5 years.