Any Advice

[Andrew Phelps]

I had the owner of a service station call had the concrete floors of three bays cleaned and sealed about 6 mos ago. The sealer or what ever the guy used started to peel with traffic after just a few days could not contact previous contractor, what method could anyone reccomend I use to remove all of this junk completely in order to get correct adhesion of the sealer I need to apply also could anyone recomend a good sealer for this area.

By the way the area is about 1800sq ft if this helps determine best method I should use. Thank for any input anyone has to offer.
Andrew/Safe Clean

 

[Andrew Phelps]

Hey guy's anyone think it might be possible to get this stuff up if I sandblast it the owner is willing to pull everything out and I have the kit to wet sandblast with my pressure washer. Just a Thought.

Andrew/Safe Clean

 

[Doc]

You might want to take a sample of the sealer to a concrete company so you may find out about the product. Sandblasting is always an alternative but if your looking to chemically remove the product knowing what you are working with is imperative. If discovering the type of sealer is not possible the next step is to bring in a variety of chemicals ranging in PH for test spots.

Just a side note; considering how porous concrete is, 100% removal of the prior coating will not be realistic unless you sandblast. In the process of sandblasting pitting of the surface may draw more then superficial attention, in this case pigmented sealer will need to be applied.

Good Luck!!

 

[Shawn G.]

Hi Andrew,

I moved this thread to "Pressure Washing" forum. Hopefully you'll get some responses here.

Shawn

 

[Ron Musgraves]

where was it posted?

 

[Andrew Phelps]

Actually Ron I accidentally put it in business 101 but I did have at least one response within a day It sometimes takes longer than that on the Pressure Washing board either way OK by me!

 

[Steven Rowlett]

Andrew, Try sodium hydroxide with hot water. If that doesn't phase it sandblasting might be the way to go. It would be hard for me to say without seeing it first hand. If you can get it up I would suggest a pure acrylic cure and seal ( 25% solids), if you can completely remove the old sealer. Epoxy works well but most concrete surfaces need to be acid etched prior to application.( depends on manufacture specifications) Let me know if it works out, good luck.