Si-701 and Si-901 double film glass coating overlay, protects vehicle finish with excellent and extended durability, consolidating top-level 3D glass coating film, which is featured with superior performances of improving finish glossiness, water-repellency and anti-fouling properties. Combined practice with X-03 protectant after practice, can protect the coating film in its hardening stage, and also can effectively prevent raindrop imprint, enabling perfect glass coating effectiveness.