Forum topic by Patrickgeddes14 | posted 09-15-2019 12:35 PM | 849 views | 0 times favorited | 18 replies | ![]() |
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09-15-2019 12:35 PM |
So I’ve never had problems with epoxy or getting ratios right but this time I think I’m mucked. I did a flood coat on a big slab and there was still a few even spots so I threw another coat on. It was a brand I’ve never used and the amount was smaller than I’ve ever used. I let it cure overnight and it’s still pretty tacky. Whatever the problem is, (probably ratio), I need to probably try and remove the entire attempted coat. I’m gonna wait a day or two just to see, but other than a pressure washer or high powered water, I’m not sure how I’m going to be able to get this mess off. Thoughts? |
18 replies so far
#1 posted 09-15-2019 01:39 PM |
Aggressive scraping then belt sand. Re pour. -- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton |
#2 posted 09-15-2019 01:42 PM |
The thing that is most tacky is your crude and unnecessary use of an expletive in your first sentence. Your post says more about you than it does about epoxy. |
#3 posted 09-15-2019 01:42 PM |
I would try heating it first, you might be able to get the epoxy to kick off. -- Bondo Gaposis |
#4 posted 09-15-2019 01:45 PM |
Epoxy to kick off as in activate and harden or kick off and in soften enough to scrape off easily |
#5 posted 09-15-2019 01:54 PM |
Activate and harden. -- Bondo Gaposis |
#6 posted 09-15-2019 01:57 PM |
Dont think a pressure washer is going to do much, except annoy you. If heat doesnt do anything, first thing I would do is wipe it down with acetone-ALOT. Possibly get down to something stable??? If you decide to take it all off, I think doing so with a router sled would be easier than scraping and sanding, certainly faster, cheaper(sanding belts/pads, of which you are going to need many), and a shade less messy. Maybe youll have to clean your bit in the process. -- WWBBJ: It is better to be interesting and wrong, than boring and right. |
#7 posted 09-15-2019 02:30 PM |
If you used the wrong ratio, you don’t have epoxy, you have uncured goo. Were both pours the same brand? Is it soft and tacky all the way through, or just tacky on surface? +1 this is family site, please follow the posting rules regarding foul language. -- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967 |
#8 posted 09-15-2019 03:10 PM |
Don’t do anything wat a couple of days. If the ratio was off it may still cure just take while longer. If surface is just tacky and you have the space mix another batch and pour on a thin coat the new coat will probably react with the older tacky surface and cure everything. -- Bruce, Boise, ID |
#9 posted 09-15-2019 03:57 PM |
Respectfully, disagree with this advice. Tacky layer of unknown chemistry may/may not be capable of reacting with a new layer of epoxy, and if it does react/cure – it will have unknown properties and bonding strength? IMHO – This will not work in majority of instances I can think of? IMHO – OP has not shared enough information on brand(s) of epoxy, amount applied, curing temps, mix ratios, etc; for us to actually know why the surface is tacky? One rule to remember with epoxy: #IAMAKLUTZ, not an expert, but have bought/used epoxy in 250gal totes in commercial applications? -- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967 |
#10 posted 09-15-2019 05:08 PM |
You might want to edit your post to remove the profanity. I have no problem with it personally, but the admin will. Regarding the epoxy, always read the mixing directions. Some are 1:1, some are 1:2. I go by weight myself. The weight ratio is either on the bottle or on the manufacturer’s web site. For example, the brand I’m using right now is 1:1 by volume but 1:0.82 by weight. -- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner |
#11 posted 09-15-2019 05:47 PM |
Didn’t know that. But it makes sense. How do you obtain the info about the relative weights? -- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton |
#12 posted 09-15-2019 06:03 PM |
Dang, that sucks -- if it is to be it is up to me |
#13 posted 09-15-2019 06:26 PM |
It was in the literature that it came with. To be honest, 1:1 is probably good enough for a product that’s mixed equally by volume. -- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner |
#14 posted 09-15-2019 08:33 PM |
I am real careful mixing epoxy and do it by weight with a digital scale. Like other have said, the weight ratio and volume ratio are different and you need to get them right for best results. If probably good enough works for you, ok. |
#15 posted 09-15-2019 10:20 PM |
Perhaps if you had read the thread you’d understand the context. -- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner |
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