Very light lines with surface cleaner...

[Johnson]

Yep, the overlapping lines is what I am talking about.

What your reffering to is called "striping". Try the chlorine mix afterwards. If they dont come out, more then likely there not going to. All concrete is different and you'll find that its a common problem but not in all cases.

 

[Christopher]

You really need to take a good look at the concrete before you clean it, there is so much poor quality concrete here, it is very easy to wash the cream right off the top if you are not looking.

It is a huge problem but people don't do anything about it, it is not a big concern to them, they are busy with other problems and that might not even be on their list of problems.

It is a shame what price you pay for concrete to be poured and then it is poor quality and starts cracking very soon afterwards or the first time you try to clean it in 6 months or a year later the cream comes right off, even with low pressure.





_________________
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Chris Chappell
361-853-2513
prostaff@superiorpowerwashing.com
House Cleaning
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[Scott Stone]

Concrete in the southern areas of the country is poor quality, because of the contractors that pour it. What happens is that typically, the concrete is ordered with a particular slump or mix. It is specified at 3000 PSI or 5000 PSI or something similar. In the south, they use a lot of lower paid labor, that prefers to make the job easier by adding water to the slump. When they do that, the PSI rating is reduced precipitously when the concrete dries. It is especially damaging to the cream or top layer of the concrete.
That is cheap concrete 101. As for the stripe reduction, I prefer to prerinse it with soap, then wash it with a surface cleaner, then rinse off the debris. That is what works for me. I have no Chlorine in my soap.

 

[MHasterok]

Concrete in the southern areas of the country is poor quality, because of the contractors that pour it. What happens is that typically, the concrete is ordered with a particular slump or mix. It is specified at 3000 PSI or 5000 PSI or something similar. In the south, they use a lot of lower paid labor, that prefers to make the job easier by adding water to the slump. When they do that, the PSI rating is reduced precipitously when the concrete dries. It is especially damaging to the cream or top layer of the concrete.
That is cheap concrete 101. As for the stripe reduction, I prefer to prerinse it with soap, then wash it with a surface cleaner, then rinse off the debris. That is what works for me. I have no Chlorine in my soap.

What kind of soap do you use? As of now, I have been getting everything from the local Hotsy dealer.

 

[Scott Stone]

Call Joe Shumaker in Phoenix. 602-332-9643. He calls me all the time when he has a chemical question. I use a Metasilicate based soap for sidewalks, and it works great. He gives me a decent price, usually. When you call him, tell him that I said he needs to stop smoking. He really is a good guy, that usually targets the ready mix industry, but, he used to be the safety manager at one of my accounts, and that is how I met him.
On top of that, he has TONS of contacts all over the state. I doubt that there are many that don't know him, and like him, in the rock industry.

 

[MHasterok]

Call Joe Shumaker in Phoenix. 602-332-9643. He calls me all the time when he has a chemical question. I use a Metasilicate based soap for sidewalks, and it works great. He gives me a decent price, usually. When you call him, tell him that I said he needs to stop smoking. He really is a good guy, that usually targets the ready mix industry, but, he used to be the safety manager at one of my accounts, and that is how I met him.
On top of that, he has TONS of contacts all over the state. I doubt that there are many that don't know him, and like him, in the rock industry.

Cool. Thanks Scott.