A controlled finishing process that removes or smooths a thin surface layer to reduce roughness, scratches, haze, or optical defects.
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Meaning and boundaries
Polishing is material removal, not filling a scratch or restoring a cracked lite to its original structural condition.
Why it matters in glass restoration
Uneven removal, excessive heat, contamination, or work on the wrong surface can create distortion, damage coatings, or increase breakage risk.