Epoxy install....got a problem

[Kaizen]

installed my 1050 sq ft epoxy over dried primer on Friday. The first 10x12 section I did I went overboard on flakes. left it alone as I continued doing 10x12 sections. about 2 hours later I stupidly decided with my wet roller I could roll some of the heavy flake areas in that first section and lightly reflake to make the flakes less.
Well yesterday when I went to clear, those places where I rolled were gooey. the rest of that section is cured as is the rest of the floor but those roll marks were really gooey when I pushed into them. like half cured. I put a fan on it for 24 hours and its been 70s here and dry for the whole time.
I clear coated half of the garage but left this area alone. Marks still gooey today but maybe a little less then yesterday.
So what should I do? Leave for a week to see if it cures or scrape it up and redo the section. I do have extra epoxy. I scraped a little and looks like there is solid blue below so if I do scrape just leave that to cure for a few days?

 

[ard]

So that section had epoxy; then heavy flake; THEN more epoxy; THEN light flake?

What product?

Ive had epoxy paints in a pail or container cure, hard, one inch thick. It may take quite some time though.

Fan wont help much, not much evap going on.

If it looks good, Id let it sit a while- NOT scrape it up yet

 

[Kaizen]

Correct as described. Epoxy-coat is the product. Just strange to me that the top coat didn't flash as it's exposed to air. Both batches used drier elsewhere fine


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[LegacyIndustrial]

Temperature, thickness, amount of catalyst all play a part in the curing process.
By adding another layer from another batch you likely disturbed the amount of A:B on the surface thus causing your issue.

If you are going to re-do, better to scrape while still gooey. Once cured you will need a grinder to get it gone.

 

[Kaizen]

I'm wondering if it will ever cure? I know both layers had the right mix






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[Richard Cranium]

I think you would be ahead of the game to scrape it off and do it again.

 

[Kaizen]

I think you would be ahead of the game to scrape it off and do it again.

going through my head how to do that and not cause a huge mess though. its a corner so both adjoining sections are fine. floor scraper or putty knife will get it up easy but how to get the rest up.....residual gooeyness if you will. its a 10x12 area so i'll have to get in there on it

 

[Dave5817]

Recently had a similar issue with a bad mix ratio. My advice is scrape as much as you can now. Grinding the putty like material that you will have in a week will be the Worst job you can imagine - it was for me.

 

[katilicous]

I've been there. Scrape and MEK. Do it before it cures into an inferior product. It won't be right. MEK will save your day.

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[Kaizen]

I've been there. Scrape and MEK. Do it before it cures into an inferior product. It won't be right. MEK will save your day.

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methyl ethyl ketone? would I use it on a rag to wipe the residue after scraping or just leave it on like aircraft stripper to get down to concrete?

 

[Kaizen]

Got a floor scraper, big bag o rags, and gallon of mek. In retrospect the whole batch was wrong I guess. Weird as I premeasured both parts in their own containers like all the other sections. Came up well. Saving grace is the primer I put down makes it easier to wipe up. Going to hit it again tomorrow and start again. Thanks to all you for guidance.




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[ard]

IF it isnt 50/50, any chance you 'inverted' the parts?!?

 

[Sonic-Boom]

Careful with that MEK...
That stuff takes polyelastomeric coating off a radome by itself in 10 mins.

 

[Kaizen]

IF it isnt 50/50, any chance you 'inverted' the parts?!?

No way. I got little measuring buckets for the activator and big buckets for my blue base. Measured each bucket and marked on the buckets the day before. The color amount wouldn't fit in the small bucket. Hell if I know what I did wrong. Just redid it and praying it cures tonight. I checked everything three times tonight out of paranoia


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[Kaizen]

Careful with that MEK...
That stuff takes polyelastomeric coating off a radome by itself in 10 mins.

Yea it works fast but so hot here it evaporates in five minutes. Used a gallon or so and fifty terrycloth rags. Looks like I was squishing smurfs. Had issue of having it on my shoes and walking on the good stuff and it started melting it. Also had some issue of stopping at the good edge as it kept making more dissolve. Not bad on the lungs though or skin. Definitely my new brush cleaning favorite


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[Kaizen]

Flashed nice this time. Thank the gods of epoxy I can move on now. Clear tonight on that half and i'll be moving in next weekend

 

[katilicous]

If you measured right then maybe the stuff you measured wasn't mixed. Being at the bottom of the can it can have too much or not enough. I had an old can of MEK and was surprised how the new greener MEK was just as effective with my sticky coat.
Squishing smurfs...lol. that's funny. Post final pics so everyone can see how good a messy job can turn out.

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[Kaizen]

Good call kat. I believe I rolled over 90 percent of that section twice two hours later and that caused the mess. I found some edge area that were solid from the first coat. Here is the part I redid. The corner 10x12.



Sunshine showing under light



And to round off the amateur hour here's where I put the squeegee with clear on it after doing the other side. Was going to do another quarter and decided to wait. Probably should have used solvent to remove it. Hit it with the first thing on hand which was the floor scraper. Took off primer and base on one spot.


Project complete.


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[katilicous]

I really like the blue and think you did great if after all that a squeegee mark is the blem you are left with. Blue looks very nice. You gonna paint your curb to match? I know you said complete but it's like so close to awesome like baseboard molding tops off new hardwood.

 

[Kaizen]

I really like the blue and think you did great if after all that a squeegee mark is the blem you are left with. Blue looks very nice. You gonna paint your curb to match? I know you said complete but it's like so close to awesome like baseboard molding tops off new hardwood.

I did get the extra 250sq ft kit to do the curb but had to use it on the floor. i'll probably just use some color matched concrete paint on the curb. it won't be getting much abuse like the floor. I think I have to patch and pretty the curb as the holes look like hell when I just roll it on. next year. right now i'm moving everything in before the snow flies. you don't know how much **** you have till its all in one place.