Fudge-nuggets! Failure

[thomapa1]

Did an extensive DIY diamond grind, patch, prep, prime, epoxy job on my garage floor. Followed all directions to a T, double all drying & curing times. Finished it @4-6 months ago - now I have hot tire pickup.

It pickedup the concrete!

So the Primer+Epoxy did not fail...the concrete below did. This blows.

Paid well over $1,500 and tons of manual labor only to have this happen. Guess I'll get $3 pads to put over my 'nice floor'.
Should have done the cheapo job!

 

[SMKS]

Is this a newer concrete pour?

 

[thomapa1]

not a new concrete pour - @20 year old house. The areas where there is pickup are not areas that were patched...normal concrete.

 

[geologist]

Sort of looks like a moisture problem to me.

 

[thomapa1]

might just be the picture - there is no moisture, it is crumbly

 

[RedAggie03]

what product did you use?

 

[thomapa1]

Armorpoxy - they were actually good with their analysis. And it is clear that there is no epoxy left behind or primer. The concrete appears to be the root.

 

[Edger]

Bummer! That is bad luck, an experienced applicator would have noticed the softness when grinding and kept grinding until it looked more stable. Then he might have hardened the surface and he would have definitely taken lots of care to vacuum up all dust.

If crumbling appears while grinding it indicates severe softness. It is surprising that this happened to an old slab after diamond grinding. I wonder if you only diamond ground the patching areas? It does not look like a moisture problem, just looks like a soft top on the slab.

Best solution is as you suggested, find the best looking mats, tiles, etc. to sit over the area, at least the rest of the floor should be fine and look great.

 

[skyking]

You have bad concrete. It seperated (popped) .Had nothing to do with your work or product. Like painting a Turd !!

 

[The Frisco Kid]

oh man that *****... at least it was due to the crete and not your finishing job or the epoxy itself.

Put mats where the wheels will make contact and enjoy the rest of your floor, I'm sure it's fine. I've seen several people here with full tile jobs under their vehicles and the rest of the floor epoxy. Looks fine