Suggestions for removing strong VOC smell from concrete slab?

[MasterCarpet]

I've got a customer with a large open finished event area. A construction company did some sort of coating removal on the concrete a couple weeks ago. It left a strong solvent type of odor. It's pretty bad. My customer even rinsed it himself with a home carpet cleaner. I don't often use ozone, but I have an ozone machine so I let him borrow it for a few days so he could experiment with it for different durations and see if anything worked. He called me today and said it's still pretty bad. I had suggested to him that if the ozone didn't work, I could try rinsing all the concrete with my tile spinner. So tomorrow I am going to go there. Thinking I'll just prespray with some saiger sauce and bump the heat and psi up and see how it goes. It's not a highly polished concrete or anything, it's just like the type you would see in a garage, and now apparently with no coatings on it. I thought about putting some saiger cide in the prespray. Although he didn't want any more smells in it, I think the smell from saigercide wouldn't really linger. He's going to have some clients to visit here in a week or two so I've got a bit of time to figure something out if it doesn't get the odor out tomorrow. Thanks everyone.

 

[Dwain Ray]

I've got a customer with a large open finished event area. A construction company did some sort of coating removal on the concrete a couple weeks ago. It left a strong solvent type of odor. It's pretty bad. My customer even rinsed it himself with a home carpet cleaner. I don't often use ozone, but I have an ozone machine so I let him borrow it for a few days so he could experiment with it for different durations and see if anything worked. He called me today and said it's still pretty bad. I had suggested to him that if the ozone didn't work, I could try rinsing all the concrete with my tile spinner. So tomorrow I am going to go there. Thinking I'll just prespray with some saiger sauce and bump the heat and psi up and see how it goes. It's not a highly polished concrete or anything, it's just like the type you would see in a garage, and now apparently with no coatings on it. I thought about putting some saiger cide in the prespray. Although he didn't want any more smells in it, I think the smell from saigercide wouldn't really linger. He's going to have some clients to visit here in a week or two so I've got a bit of time to figure something out if it doesn't get the odor out tomorrow. Thanks everyone.

Without seeing and just furnishing an educated guess I would probably try a degreaser with a floor buffer and stiff bristled brush vacuum off and thoroughly rinse maybe something as simple as dawn dish soap(youll need defoamer if you use dawn). I would however pre-qualify the job as a fixin someone else's mistake and have no guarantee or okie guarantee ( if it breaks they get to keep all the pieces(for same price) ). Dawn would be my first choice, if you need something stronger maybe step up to a Zep product but i would be hesitant to use products that would add additional smells/ odors