Water based sealer removal?

Gotta a guy with water based sealer on exposed aggregate that needs stripped. What’s a good process and price point?

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Stripper

I did that once.
ONCE.

I don’t remember what I charged but it seemed like a lot up front and barely covered my chem costs at the end.

I’d try a strong sodium hydroxide mix and hot water. If it’s a couple years old it may come up easily. If it’s a quality product like Seal n Lock it will take a good bit of work.