F9 Barc

814jeffw

Active member
I currently use a product for rust removal on concrete, and it works very well. But,..the results aren't immediate,..you have to wait for the concrete to dry and then it looks great. I've done several concrete driveways that have rust damage from what I assume is from snow plows scraping the surface and leaving metal filings embedded into the surface.

Actually I use a two step process, I use the main product bought locally. Then I follow up with oxalic over the entire surface to bring it all together. Works well but I hate the idea of no instant results.

Does F9 give results without the wait of drying? I actually bought some and am gonna find out for myself, just wanted to get some input beforehand.

* Also, if this isn't consistent with snow plow rust, please tell me what it is,..because that is just a guess on my part. Plus,..these are actually insurance jobs in this development from the same snow plow guy. I wish I had a better answer for him. But, cleaning is better than the alternative,..and he'll keep the customers.

** The whole driveway is this way down to the road, and the curbing has scrapes in it horizontally,..just like the edge of a plow would do in my opinion. Also,..the first 4-5 ft. out from the garage is rust free,..probably doing this area with a shovel?

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Thanks,
Jeff
 
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Doug Rucker

Roundtable Host 2009
Jeff it all depends on the type of rust. For Irrigation stains, and sone other easy rust stains the change is immediate. For fertilizer and battery acid stains there is a drying period, in fact 3 drying periods. If you go to the Front9restoration.com site there is a video that explains exactly how and the process to do it.
 

814jeffw

Active member
Thanks Doug,..yea I seen the videos,..I don't mind the drying period as far as the waiting goes. I just need to learn to trust that it's working. I mean,..I'm probably spraying more than needed,..trying to get it to disappear,Ha,Ha,...

Put the wand down,..and walk away,..don't look back!!

My process is:

(1) Spot treat the more concentrated areas with the main rust remover

(2) Then, spray oxalic at 8 Oz. per gallon over the entire area

(3) Let sit for 15-20 minutes,..misting to keep damp,..(I do these during morning hours)

(4) Hit bad spots again,..use deck brush and scrub into the spot

(5) Run surface cleaner--- Usually about 75% better while wet,..then when it dries it's 90%-100% better.

I may try the pre-cleaning. I have a gallon of F9 I will be trying in the next couple of days.

Jeff
 
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Doug Rucker

Roundtable Host 2009
Thanks Doug,..yea I seen the videos,..I don't mind the drying period as far as the waiting goes. I just need to learn to trust that it's working. I mean,..I'm probably spraying more than needed,..trying to get it to disappear,Ha,Ha,...

Put the wand down,..and walk away,..don't look back!!

My process is:

(1) Spot treat the more concentrated areas with the main rust remover

(2) Then, spray oxalic at 8 Oz. per gallon over the entire area

(3) Let sit for 15-20 minutes,..misting to keep damp,..(I do these during morning hours)

(4) Hit bad spots again,..use deck brush and scrub into the spot

(5) Run surface cleaner--- Usually about 75% better while wet,..then when it dries it's 90%-100% better.

I may try the pre-cleaning. I have a gallon of F9 I will be trying in the next couple of days.

Jeff

What so this process for....what type of rust???
 

814jeffw

Active member
I'm not even 100% sure it is from a snow plow, just seems consistent with what I picture a snow plow scraping on concrete would look like. And from the other couple of things I noticed, seems to make sense?

Jeff
 

Doug Rucker

Roundtable Host 2009
Yes...I ve seen in it in Milwaukee, Des Moines, and other snow states. Guys their use F9 and pretty sure no scrubbing. I am pretty sure they spray it on and it disappears, rinse good. No drying time. Pretty quick treatment.
 

814jeffw

Active member
Yea,..I will be giving F9 a try. According to the instructions for it's use. If it makes it disappear without having to be dry I'll be impressed.

As far as scrubbing,..I don't know if I have to scrub my current product or not,...I just do it because it's not disappearing,Ha,Ha,.. If I'd just walk away and allow it to dry would most likely go away on it's own,..because scrubbing seems like futile effort anyhow.


Jeff
 
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