Best efflor and general cleaner before sealing...

[CMSStoneworks]

hey guys....wondering what you have all used to clean and seal your pavers. I have a customer I did a driveway and walkway for last year asking for me to come back and clean and seal. My local supplier has "sealking" products. However im sure i could find techniseal and or pavetech around the area. Has anyone used seal king products? likes dislikes? other products? Im looking for real world experience...not opinions. Whats the best cleaner you have personally used and why.

[CMSStoneworks]

well...i'll be sealing a driveway next week with a product from Braen supply. MFG is Sealking. I'll post some before and afters and a little write up. Customer is going with the semi gloss.