I've been thinking about a potential use of this C4, so please bear with me. Obviously, it restores pretty faded trim upon application and is super durable compared to standard dressings. Once cured, full strength APC won't phase it but it HAS started fading after several months.
Now if you apply it, wait for it to cure, and then clean it with APC before you OptiCoat it, would the OC "lock in" the restored look? As long as the trim is clean, the OC should bond, so I'm wondering if this would actually work or if it's just wishful thinking.