3M Color Stable auto films maintain their color over time. The unique manufacturing process is so advanced that in time-based tests, Color-Stable auto films held their color while most conventional dyed films rapidly turned purple. Color Stable films will not fade, purple, bubble, blister, peel, or interfere with satellite signals; and 3M Company guarantees it for as long as you own your car. Because of its method of construction. Available in: 5%; 20%; 35%; and 50%.