can I use this clear coat on my outside mobile home metal chrome plated with clear Plexiglas little windows in them front top ceiling lights ?

Thank you for reaching out! Rust-Oleum Stops Rust Clear Enamel Spray Paint is suitable for use on interior or exterior metal and wood surfaces. It can also be used on previously painted surfaces that are in good, sound condition. Smooth, hard, and glossy surfaces will need to be scuff sanded to ensure proper adhesion and durability of the coating. This product is not intended for use on glass or plastic surfaces. - Rust-Oleum Product Support 3