Metro Smoke Out Vinyl Head Light Lens Tint Film 24"x72" Smoke (Dark) Film: 78% Light Transmission 20% (Dark) Smoke Film When applied correctly the film is very durable. The film is coated with a UV protective layer which lasts up to nine years outdoors. Once applied and bonded to you surface you may clean it and polish it with any type of cleaning agent that is used for painted surfaces. When heated and stretched it can be applied to extreme curved surfaces with a little patience and work.