Expansion crack fill

[mercifiknow]

Anyone use wood or something to fill the expansion crack on their floor? Creeper gets caught in it and it’s a PITB to get out out of it!


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[Shea]

How wide is the joint?

 

[Armorpoxy]

We offer a Crack Repair Epoxy for smaller joints or Epoxy Mortar for larger gaps. Per Shea above we would need to know the width and depth to advise more.

 

[mercifiknow]

How wide is the joint?

Sorry for the long time to respond, but the garages haven’t been built yet. The last home was about an 3/4” to 1” at the widest.


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[Armorpoxy]

Hi, you an use the Crack Repair Epoxy putty. Depending on depth you may need 'backer rod' to support it (sand can also be used). Most likely will need a second application to level it out since if not properly supported it could sag.

Epoxy Mortar which we carry would be a better choice since these are fairly large gaps.

 

[mercifiknow]

Hi, you an use the Crack Repair Epoxy putty. Depending on depth you may need 'backer rod' to support it (sand can also be used). Most likely will need a second application to level it out since if not properly supported it could sag.

Epoxy Mortar which we carry would be a better choice since these are fairly large gaps.

Does this impact the purpose of the expansion crack ?

Do you put this down before epoxying the floor?


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[GeeTeeOhh]

What about this? Self leveling, flexible, use a backer rod. Sikaflex 1A Polyurethane. Home depot carries it.

 

[Shea]

As long as the depth is not more than 1/2", SikaFlex will work. However, SikaFlex is a joint sealer / filler that should not be used to apply coatings over. For this application, we would recommend filling the joint with clean silica sand instead of backer rod. This is due to the fact that the OP does not want creeper wheels to get hung up. With such a wide joint, if a wheel rolls long ways into the joint with the backer rod, it could possibly punch through the sealer or sink down too far since the backer rod is not supported underneath.

 

[gizardlizard]

Sani-tred. Same stuff they use on the Hoover Dam. It’s awesome stuff. I use it at work and home. Just a little pricey is all.

 

[428PI]

I have the same problem in my shop (you can see my question and the responses). I'm wondering if using some concrete staples to keep the slabs together and than fill with some sort of more permanent cement like material would be the way to go. I let mine go to long and I'm up to 2 inch cracks that have to be filled.

 

[LegacyIndustrial]

I have the same problem in my shop (you can see my question and the responses). I'm wondering if using some concrete staples to keep the slabs together and than fill with some sort of more permanent cement like material would be the way to go. I let mine go to long and I'm up to 2 inch cracks that have to be filled.

If your cracks are really wide and growing an anchor may be needed, in addition to a product like our XtremeSet100.

If your cracks are a reasonable width and stable a product like our XtremeSet100 will bond the slab and fill the void.

https://www.legacyindustrial.net/pr...atings/xtreme-set-100-crack-joint-filler.html



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[u2slow]

I think I bought Zinnser brand polyurethane for my concrete gaps (between slab and foundation wall). Worked well.

I chose polyurethane because it seemed most similar (i.e. hard yet gummy) to what the big-box stores are using for their cracked concrete floors.