Jim Cooney
New member
What's your average dwell time using Oxalic Acid ? Has anyone experienced a problem if/when the Oxalic dry's before it is rinsed ?
I'm doing a 3000+ sq ft driveway later this week with some rust stains. Unlike others I have done in the past, the original sealer applied soon after the concrete was poured (maybe 5 years ago) is starting to fail. I'm hoping either the pressure and heat will remove the remaining sealer that is failing, or the Ox will assist.
As always, your feedback and suggestions are much appreciated.
I'm doing a 3000+ sq ft driveway later this week with some rust stains. Unlike others I have done in the past, the original sealer applied soon after the concrete was poured (maybe 5 years ago) is starting to fail. I'm hoping either the pressure and heat will remove the remaining sealer that is failing, or the Ox will assist.
As always, your feedback and suggestions are much appreciated.