Is this high-gloss surface prone to showing scratches and orange peel in outdoor use?

A: Yes, this is a primary challenge for high-gloss surfaces.

Scratches: Any fine scratch becomes highly visible under light due to disrupted reflection.

Orange Peel: Minor texture unevenness from coating curing is amplified under strong reflection, affecting the mirror-like finish. Reputable manufacturers minimize orange peel through strict environmental control, high-precision coating, and leveling techniques.
Thus, requirements for production, transport, installation, and protection are extremely high.