Hello everyone. My wife and I want a tonneau cover for our truck. The idea is not for security but rather to keep items out of the weather. We use the bed for hauling feed and mucking on the farm. We are looking into roll up covers because of their cost and they allow full bed access. They sell expensive cleaners and protectants, but are they nessary or are they marketing hype? What items can safely be used to clean and protect a roll up cover? The Truxedo brand says to not use silicone products.