Concrete Sealing Issue

 
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Old 02-17-2018, 01:32 PM   #1
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Concrete Sealing Issue


Hello everyone, Im trying to troubleshoot what happened with this sealing job and could use any advice or thoughts you may have.

I think I got a bad batch of sealer because the job looked great after the prep, then these blotches and streaks came up after the application of the penetrating sealer.

Here are some pics...
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Concrete Sealing Issue-img-20171206-wa0003_1518895846527.jpg   Concrete Sealing Issue-img-20171206-wa0004_1518895876963.jpg  
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Old 02-17-2018, 01:39 PM   #2
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Re: Concrete Sealing Issue


looks like a shi**y pressure wash job and sealer applied before slab was dry, the guys at the DIY forum can probably help

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Old 02-17-2018, 01:49 PM   #3
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Re: Concrete Sealing Issue


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Originally Posted by Bull Trout View Post
looks like a shi**y pressure wash job and sealer applied before slab was dry, the guys at the DIY forum can probably help
The slab is over 15 years old and it had no previous sealer on it before. I'll check with the DIY forum.. thanks
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Old 02-17-2018, 04:50 PM   #4
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Re: Concrete Sealing Issue


is your sealer solvent based?
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Old 02-17-2018, 04:53 PM   #5
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Re: Concrete Sealing Issue


No it's water based
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Old 02-17-2018, 06:23 PM   #6
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Re: Concrete Sealing Issue


cant help you then
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Old 02-17-2018, 06:24 PM   #7
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Re: Concrete Sealing Issue


how long after application were photos taken?
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Old 02-17-2018, 06:41 PM   #8
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Re: Concrete Sealing Issue


A little over 24 hours...
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Old 02-17-2018, 06:54 PM   #9
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Re: Concrete Sealing Issue


It's lighten up since the photos but it's still there. The manufacturer said it was because the Portland cement is older
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Old 02-17-2018, 07:14 PM   #10
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Re: Concrete Sealing Issue


Ive had some of those water based sealers do this before. The cloudiness usually fades after a few days and looks normal.
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Old 02-17-2018, 09:08 PM   #11
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Re: Concrete Sealing Issue


Thank you for your post.

Any tricks to try and keep this from happening?
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Old 02-18-2018, 08:48 AM   #12
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Re: Concrete Sealing Issue


i personally believe you need to give it a week or two to let it fully cure and then you will see a more desired result
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Old 02-23-2018, 05:08 PM   #13
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Re: Concrete Sealing Issue


Was the sealer UV stable? Did you back roll it, did you use any type of acids to clean the surface?
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Old 02-23-2018, 05:16 PM   #14
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Re: Concrete Sealing Issue


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Was the sealer UV stable? Did you back roll it, did you use any type of acids to clean the surface?
Not 100% sure about the UV but I used a degreaser and cleaner beforehand. I didn't do or use etching or bleach mixes. The application was sprayed on with a battery powered backpack sprayer.
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Old 02-23-2018, 07:55 PM   #15
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Re: Concrete Sealing Issue


if you didnt roll that then what i would bet what you're looking at is the shadows of a previous power wash!! sealers often "enhance" the substrate below....the next time you want to do a seal, I think part of your initial due diligence would be spraying a bit of water on the floor and see whats rears it's head???
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Old 02-23-2018, 08:13 PM   #16
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Re: Concrete Sealing Issue


Quote:
Originally Posted by parkers5150 View Post
if you didnt roll that then what i would bet what you're looking at is the shadows of a previous power wash!! sealers often "enhance" the substrate below....the next time you want to do a seal, I think part of your initial due diligence would be spraying a bit of water on the floor and see whats rears it's head???
Ya I'll give it a shot. Thx for the tip!
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Old 02-24-2018, 08:47 AM   #17
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Re: Concrete Sealing Issue


re read
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Old 03-26-2018, 09:28 PM   #18
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Re: Concrete Sealing Issue


You can eliminate streaking cause by pressure washing by using a "turbo" or rotating nozzle.
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Old 04-03-2018, 05:22 AM   #19
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Re: Concrete Sealing Issue


Quote:
Originally Posted by PaverSealer View Post
Thank you for your post.

Any tricks to try and keep this from happening?
Use solvent based next time.

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