Hairline Cracks on Concrete Deck


Apr 29, 2016
HI All,

I have numerous hairline cracks on my concrete pool deck. The deck paint does not fill them in so I am looking for a product I can use. They are too small for caulking does anyone know a product I could use to fill them in before I re-paint.

Thank you in advance


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Epoxy concrete crack filler.

Show us some pics of the cracks.


Well-known member
Jul 2, 2014
Athens, GA - USA
This is not my area of expertise but I don't think you will be able to fill them as is. You have to either cut them with a saw or chisel them out to make them wider. Then add a crack filler. If they are small and not growing, you might be best to just leave as they are.


Gold Supporter
Feb 7, 2017
Tulsa, OK
I used and just let it sit on top of the crack. I figure it is going to keep the water out and that is the point. I am not too fussed about it looking perfect. I poured it on then used a small brush to smooth it out a bit or else it makes a kind of hump.

I think it you want it to look nice though you will have to make it a bit wider so you can put in something that will fill in, instead of sit on top


Gold Supporter
Feb 7, 2017
Tulsa, OK
Yes, it is not a good long term repair, but it is easy and cheap. It also isnt too strong so if your concrete shifts again it will crack, but it does keep the water out and keep the elements from wearing away the edges.
Also, Mine has only been on for about 4 months, we will see what the winter does to it. If shirker has used it and it didn't hold up , I will probably have to end up using something else myself.
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