Bonded glass vanity unit broken edge repair Broken edge in a bonded glass vanity unit in a hotel in Gatwick Airport. The chipped glass edge had to be smoothed and safe to touch. 1 The due of the vanity unit was chipped and left sharp and dangerous to anyone using the room. 2 After a polishing repair the edge looks like it was meant to have the new edge given to it. It is now safe to touch and doesn't look broken. see more repairs