All,
I have been asked to bid on a job cleaning and sealing cement pavers. Please see attached pictures. I’m told they are cement pavers but they look like travertine to me. Anyway are there any precautions or concerns I should have about cleaning and sealing these pavers. Cleaning should be no problem; I was just concerned about sealing them and have a problem. Any input would be appreciated.

Thanks,
Roger Konarski