Methods, treatment compositions and treatment systems are disclosed for forming a detachable and renewable coating on a receptive surface by a process of applying a treatment composition comprising a plurality of hydrophobically modified fumed silica particles colloidally dispersed in a volatile solvent;...http://www.google.ca/patents/US7828889?utm_source=gb-gplus-sharePatent US7828889 - Treatments and kits for creating transparent renewable surface protective coatings
