Concrete Sealed Too Soon? - Concrete, Stone & Masonry - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Concrete, Stone & Masonry

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Like Tree4Likes
  • 1 Post By mark sr
  • 1 Post By Yodaman
  • 2 Post By Canarywood1
Reply
 
Thread Tools
Display Modes
Old 06-26-2017, 09:11 PM   #1
Newbie
 
Join Date: Jun 2017
Posts: 3
Rewards Points: 6
Default

Concrete sealed too soon?


I have concerns about a slab I had poured last week for a garage I am building. The contractor returned the very next day to cut in the lines and apply sealer. Now the entire slab looks like the pics! Was it sealed too soon? Or is something else going on here? He claims the appearance will even out, but all the discoloration and streaks are trapped under the sealer! I looks horrible! I welcome your thoughts...
Attached Thumbnails
Concrete sealed too soon?-slab-3.jpg   Concrete sealed too soon?-slab-5.jpg  
jhenry1745 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-27-2017, 06:22 AM   #2
retired painter
 
Join Date: Jun 2017
Location: east tenn
Posts: 7,913
Rewards Points: 1,830
Default

Re: Concrete sealed too soon?


What sealer did he use? Most use a sealer that helps cure the concrete and is usually applied within 24 hrs of the pour. If it's a clear 'paint' type sealer you'd probably need to wait 30 days.
jhenry1745 likes this.
mark sr is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-27-2017, 07:59 AM   #3
Property Mgt/Maint
 
Join Date: Mar 2015
Location: Upstate NY
Posts: 6,190
Rewards Points: 7,624
Default

Re: Concrete sealed too soon?


"When to applyWhen you apply sealer can be important as well. Allow new concrete to cure completely (at least 28 days or as recommended). Most sealers must be applied under dry conditions, since applying sealer to damp concrete could cause haziness or loss of adhesion. Air temperatures are also important and should typically be above 50°F during and for at least 24 hours after sealer application. Always allow the sealer to dry completely before exposing it to foot or vehicle traffic. Drying times before exposure to heavy traffic can be as long as three days."


I think the key for you is find out what was put down and what the specific mfg's guidelines are for new concrete.

Good Luck



https://www.concretenetwork.com/conc...alingplain.htm
jhenry1745 likes this.
Yodaman is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-27-2017, 03:57 PM   #4
Member
 
Join Date: May 2012
Location: Sarasota,Florida
Posts: 4,070
Rewards Points: 1,042
Default

Re: Concrete sealed too soon?


If he used a combination curing and sealing compound it's okay, otherwise follow the mfg's. directions, he did the right thing on cutting the control joints.
stadry and jhenry1745 like this.
Canarywood1 is offline   Reply With Quote
Old 06-27-2017, 04:52 PM   #5
Newbie
 
Join Date: Jun 2017
Posts: 3
Rewards Points: 6
Default

Re: Concrete sealed too soon?


It's a thick application and shows a lot of depth. I'll find out tonight what was used.

Not a fan of the splotchy spots and streaks!
jhenry1745 is offline   Reply With Quote
Old 06-27-2017, 08:18 PM   #6
Member
 
Join Date: May 2012
Location: Sarasota,Florida
Posts: 4,070
Rewards Points: 1,042
Default

Re: Concrete sealed too soon?


How old is the slab??
Canarywood1 is offline   Reply With Quote
Old 06-27-2017, 08:31 PM   #7
Newbie
 
Join Date: Jun 2017
Posts: 3
Rewards Points: 6
Default

Re: Concrete sealed too soon?


Quote:
Originally Posted by Canarywood1 View Post
How old is the slab??
One week.
jhenry1745 is offline   Reply With Quote
Old 06-27-2017, 11:09 PM   #8
Concrete & Masonry
 
Join Date: Nov 2008
Location: Wisconsin
Posts: 3,759
Rewards Points: 464
Default

Re: Concrete sealed too soon?


Was there plastic sheeting/visqueen laying on the slab early on? That looks like the cause of most of the streaking to me.

Obviously, as others have said, the kind of sealer is important as well. We use water-based cure seals that we literally follow the broom with. Most solvent-based sealers require more cure time to work correctly.
jomama45 is online now   Reply With Quote
Old 06-28-2017, 11:16 AM   #9
Member
 
Join Date: May 2012
Location: Sarasota,Florida
Posts: 4,070
Rewards Points: 1,042
Default

Re: Concrete sealed too soon?


Quote:
Originally Posted by jhenry1745 View Post
One week.
Give it another 2/3 weeks and it should clear up.
Canarywood1 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sealed concrete maddog1 Painting 6 03-08-2015 08:29 PM
Are my concrete piers doomed to fail? Pharm80 Concrete, Stone & Masonry 6 09-11-2014 01:03 PM
How To Keep Your Concrete Mixer Driver Happy Mort How To Guides 38 02-12-2014 07:25 PM
Repairing concrete slab in shower JohnRoss Building & Construction 0 08-08-2011 02:20 PM
how to fill the gaps between concrete blocks? micapavlov Building & Construction 4 01-03-2010 05:53 PM




Top of Page | View New Posts