Lift and escalator panels are the most unforgiving application for a decorative finish. The surface is seen up close, under good light, and often as several panels side by side — so any variation in grain direction, gloss or reflectivity between panels reads as a defect even when each panel is technically within spec.
Finishes typically specified
- Hairline (HL) — the default for lift car interiors: fine, continuous, refined.
- 8K super mirror — for feature walls, decorative cab panels and hotel lifts.
- No.4 — for escalator cladding and service areas where cleanability matters more than gloss.
What goes wrong, and why
- Striping across the width — caused by feed-speed variation or inconsistent head pressure, not by the abrasive. It is a machine design issue.
- Grain direction mismatch between panels — panels must be processed in a consistent orientation; this is a process discipline issue on the line.
- Haze or orange peel on mirror panels — almost always the result of a compressed abrasive sequence, skipping intermediate polishing stages.
Recommended machines
- Sheet polishing machines for cut-to-size panel work
- Sheet buffing machines for hairline and pre-mirror work
- 8K mirror lines for sheet for decorative panels