Etching after prep tool?

[aodfan]

So, I rented a concrete prep tool from Home Depot because there were a lot of gunk on the concrete that would not come up with a scraper. My plan is to convert my garage and stain the concrete in certain areas. I used the prep tool in these areas.

According to the documentation for the prep tool is it is to get the concrete for coatings(i.e. paint, sealers, stains). I am wondering that since I did use the prep tool, can I skip the etching step of staining or does that still need to be done?

The prep tool that was used was the Prep Plus(25 grit)
http://www.diamabrushbymalish.com/concrete-prep-plus.html

 

[LegacyIndustrial]

If you are going to use acid stain do not etch.
It will react with the lime and prevent any coloration from the stain.

Using the prep tool should be plenty of prep.

Pics??

 

[aodfan]

If you are going to use acid stain do not etch.
It will react with the lime and prevent any coloration from the stain.

Using the prep tool should be plenty of prep.

Pics??

Here are some pics after the prep tool, you can see what it looked like before:

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[Edger]

Love those pics.

I would be tempted to give it a clean first with a strong (very) alkaline cleaner solution and after gentle rinsing hit it with a water blaster. This is to get the dirt out of the pores of the concrete.

You would need to check before hand to see if this would interfere with the acid stain. I doubt it, but I am not a chemist.

 

[aodfan]

I modified some of the photos with some green lines to show where I will be staining, just so that there is no confusion.

 

[LegacyIndustrial]

Looks good.