My attached garage has had a couple of heating oil spills (about 10 gallons each time). The most recent one was about 4 months ago. At the time I blotted it up with newspaper and rags. Then several weeks later, prepped the floor with DRYLOK ETCH (Removes efflorescence, and etches concrete surfaces), power washed the floor, let it dry, then applied 2 coats of DRYLOK Masonry Waterproofer. There's been a distinct smell since (I thought it might be the paint itself but people have said they think it's the heating oil). We want to convert the garage into living space.
My Question: what can we do to eliminate the smell? Would a coat or 2 of epoxy paint help?
THANKS!
