white concrete after what appears to be muratic acid

Pressurized

Pressurized

New member
I want to start by saying happy easter!

I went and looked a a job yesterday at a store where someone cleaned just the enterance's with a pressure washer and muratic acid. Well it left it all discolored, enterances being normal concrete color with some yellowish places (not normal) and the rest of the concrete white. What can I use to make this all white again? I tried spraying bleach through a pump up sprayer on it and it only seemed to lighten it up a very very little. Thanks in advance!
 
Hydrofluoric and sulfuric acid mixed. A good strong aluminum brightener (both acids in the 8% to 10% range) cut 1:2 and misted over the entire area should make the color a uniform white.

Be extremely careful with acids, especially HF (hydrofluoric acid).

Anyone using HF should download and print the attached document. It is standard medical procedures to treat HF exposure. Many emergency medical staff have no idea what to do for it. Keep a copy in your truck, and take it to the hospital with you just in case.

View attachment HF_medical_book.pdf

Although HF is a greater hazard than other chemicals, it does things nothing else can do in certain circumstances. Just respect it for what it is, and use it appropriately.

Neutralize the area with a dilute soda ash solution.
 
I was going to suggest the same Chems for the problem. Just not so eloquently. Nice job Russ.
 
Pressurized said:
THANK YOU, now let the chemical hunt begin. So 1 gal (.5gal hf +.5gal sf) and 1 gal water in pump sprayer, or 1 gal hf and 1 gal sf?
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The acids are already blended in the aluminum brightener. You don't want to be messing with either in its raw strength. 1/2 gal aluminum brightener in 1 gallon water.
 
Although I'd love to sell you some, you'd be better off buying a small quantity like a gallon from a local source.
Anything shy of a drum isn't a feasible purchase. HF must be truck freight shipped, the package services won't touch it in any quantity.
A drum would run $130 - $160 or so to ship...so is a gallon...or a fiver. Even if you pay $25.00 for a gallon locally, you'd obviously still save a ton.
If you washed fleets or had lots of concrete whitening to do, I'd welcome your business with open arms.
 
I really appreciate you looking out for me, and now that I know about your store I will bookmark it for future purchases. So I just need to go to an auto parts store and ask for some aluminium brightener or do you think they wold have it.
 
Contact your local pressure washing supplier if you have one.

The hardware stores and auto parts stores will not have the commercial grade chemicals and equipment you need to run a commercial business.

If you don't have a local pressure washing supplier (not a box store) then the vendors on this site will happily take your order and get you the professional grade supplies you need.

As for chemicals, if you don't have a local supplier, you will have to order a larger quantity FROM A REPUTABLE VENDOR, NOT ALL VENDORS ARE REPUTABLE WHEN IT COMES TO CHEMICALS AND DETERGENTS.

There are some threads on the site talking about some of the great chemicals from some of the vendors here, Russ J., Brad J. are some that have great chemicals.
 
Pressurized said:
Hey Russ do you got any f-13, I couldn't find it on your site... appears to be an excellent gutter cleaner
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Yeah, the F-13 is Bob's product. It's a good gutter cleaner from what I've heard.

My gutter products are BD20 and BD200.
 
Thanks Chris and Russ, there is not a local supplier here or in the state for that matter that I know of.... closest thing is in memphis. So lots of ordering and minimum order stuff.... I would love to keep it in the community
 
Russ Johnson said:
Although I'd love to sell you some, you'd be better off buying a small quantity like a gallon from a local source.
Anything shy of a drum isn't a feasible purchase. HF must be truck freight shipped, the package services won't touch it in any quantity.
A drum would run $130 - $160 or so to ship...so is a gallon...or a fiver. Even if you pay $25.00 for a gallon locally, you'd obviously still save a ton.
If you washed fleets or had lots of concrete whitening to do, I'd welcome your business with open arms.
Click to expand...

Found some today will try tomorrow
aefd5480-9829-1065.jpg
aefd5480-9847-948a.jpg


Sent from my DROIDX using Tapatalk 2
 
Pressurized said:
Thanks Chris and Russ, there is not a local supplier here or in the state for that matter that I know of.... closest thing is in memphis. So lots of ordering and minimum order stuff.... I would love to keep it in the community
Click to expand...

Try Harcros in Little Rock

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