Old Concrete Floor Repair

[Fox 21 Alpha]

I just recently bought my house and I wanted to epoxy my floor, probably with Armorproxy.

I began researching how to get my floor repaired and originally I was going to hole cut out the damaged areas and use HD-110 to repair the floor as I saw a member on here do. I’m new to concrete though and am wondering if I have such a large area if there’s another option such as a jack hammering the floor up and getting it repoured I should be looking at.

The floor is about 24x26. There’s some decent areas, but some larger problem areas which look to be pitted.

Most damage seems to be just from age, as it was built in the early 60s. I also have the oil pit to contend with, which I wanted to epoxy as well.

 

[Armorpoxy]

Hi
This is pretty bad pitting. Please see our Surface Prep Memo and Corroded Floor Bulletin links below which gives guides on how to repair. These are helpful and explain the limitations of epoxies to 'fix' a floor.

Since the floor is highly oil stained, when placing the order if using Armorpoxy, please call us to place the order and request a no-charge swap out of the standard primer for the Oil Stop Primer since this primer bonds very well to concrete with residual petroleum products embedded.

https://254gg219z24i1qbcah3y1wxe-wp...content/uploads/2017/11/Surface-prep-memo.pdf

https://254gg219z24i1qbcah3y1wxe-wp...t/uploads/2017/11/CORRODED-FLOOR-BULLETIN.pdf

Thank you.

 

[SolarColumbia]

I have a similar situation. I am considering Abatron Abocrete epoxy to resurface after doing epoxy reoair of the cracks, pits, etc. Abocrete can applied down to a few mils thickness. I am not connected with the company but this seems to be my best option from doing considerable on-line research.

 

[LegacyIndustrial]

The 110 would work, it would be a slow go.
The smaller pits, I would use less sand and more resin, drag the material over those small holes with a steel trowel.

 

[Tpsykes]

This type of floor we would shot blast. Install an oil tolerant primer, and then create a slurry of epoxy and fine sands and squeegee over all the spalls and damaged areas. After it cures it can FE ground or sanded smooth and then the entire floor coated with coating of your choice.

 

[ConCretin]

Maybe the floor experts can weight in on the cracks cause I'm not sure what I'd do about them. They are probably just shrinkage cracks dating back to the original placement but based on the fact that they appear to have telegraphed through previous repairs, they are still moving from thermal expansion and contraction. How does the OP keep them from showing up in his new epoxy floor?

 

[LegacyIndustrial]

Maybe the floor experts can weight in on the cracks cause I'm not sure what I'd do about them. They are probably just shrinkage cracks dating back to the original placement but based on the fact that they appear to have telegraphed through previous repairs, they are still moving from thermal expansion and contraction. How does the OP keep them from showing up in his new epoxy floor?

Fill with sand, soak with polyurea (Xtreme Set 100), once cured grind them flush.
The bond will be so strong that if the slab wants to crack it will choose a new place to crack!!!

 

[ConCretin]

Fill with sand, soak with polyurea (Xtreme Set 100), once cured grind them flush.
The bond will be so strong that if the slab wants to crack it will choose a new place to crack!!!

Thanks! I learn something new every day around here.

 

[LegacyIndustrial]

LL we learn much more from you per capita!!! You are the slab guru!




Sent from my iPhone using Garage Journal

 

[Fox 21 Alpha]

Thanks for the replies and help guys. If I ended up using the 110, would it be best to cut the damaged areas out and fill them in or attempt to fill them in as they are now?


Sent from my iPhone using Garage Journal

 

[SolarColumbia]

If it sounds "hollow" when you tap on them you might be having to get down to solid concrete before patching or it won't hold up. If it is just surface damage you could apply over the divots after removing any loose material.

 

[Chicagodiy]

Do full broadcast flakes too. My floor was like that (thread coming soon) and now it’s great. Every tiny imperfection will show if not covered in flakes. I used globmarble.com because their chips were super cheap. 25lbs plus 4lbs in my kit was just enough to cover 410sq ft. Find the kit/products you want and I recommend supplementing flake and double top coat.

I did my repair with 6 kits of rustoleum patch and repair because it is the same cost per oz as most other products. Then I could just do a small batch of repair each night.

 

[LegacyIndustrial]

Thanks for the replies and help guys. If I ended up using the 110, would it be best to cut the damaged areas out and fill them in or attempt to fill them in as they are now?


Sent from my iPhone using Garage Journal

If clean, dry and sound you can go right over the surface you have.


Sent from my iPhone using Garage Journal