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mildew stain resistant grout: epoxy or other suggestions?

Posted by M_N_A (My Page) on
Tue, Jan 7, 14 at 15:16

our rooms are kind of dark so the tiles we picked are all light color.

for maintenance concern, we are looking for solution of mildew stain resistant grout.

we found epoxy Grout such as SpectraLOCK. But a quick search seem to found lots of complains of messy sticky residue on the tiles which is hard to clean up, and sagging on vertical installations.

What's more, our contractors, though having many years of experience and being very careful and thorough, have not used expoxy group.

Should we give it a try?

is there other suggestions for best mildew stain resistant solutions? thanks!!


Follow-Up Postings:

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RE: mildew stain resistant grout: epoxy or other suggestions?

Spectralock is pretty straight-forward. Just make sure the instructions are read and the methods and timelines are followed.

One thing I wouldn't do is force an epoxy grout on an installer if they are unwilling to use it. If they are willing to learn, great. If not, get a different crew or use a different product.

Heck, I never used epoxy grout until the first time I used it. You have to start some time!


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RE: mildew stain resistant grout: epoxy or other suggestions?

I've started using "Fusion Pro," available at some Home Depots. It is a premixed product that, I think is silicone based. Never needs sealing and is anti-microbial. Holds colour perfectly and is relatively easy to use. It sets up pretty quickly and you DO need to do fairly small areas and start the clean-up within 2 minutes or less. It's become my "go to" grout.


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RE: mildew stain resistant grout: epoxy or other suggestions?

Another vote for Fusion Pro. Easy to use if you follow the directions and StoneTech's advice to clean it right away. Custom Building Products describes it as "An advanced acrylic plus silicone resin with silica fillers and inorganic
pigments," Supposed to give the easy workability of cement based grouts with the 'bulletproof-ness' of epoxy and no mixing or color variation issues.


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RE: mildew stain resistant grout: epoxy or other suggestions?

@mongoct, I posted the same on build forum and someone specifically called you out for comments:) my contractors seem to be willing to try. I just want to be the guinea pig. from what you say it seem to be easy to learn. Have you also heard of " a laticrete "epoxy" product that isn't entirely epoxy and had none of those issues and have no mildew... "

@StoneTech, I will look into Fusion Pro too


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RE: mildew stain resistant grout: epoxy or other suggestions?

on a similar note, any suggestion for mildew issue with caulking?


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RE: mildew stain resistant grout: epoxy or other suggestions?

@stoneTech again, I just read on HD about fusion pro. some said "8 months after install this product has failed. Literally just crumbling away."
what could go wrong in installation?


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RE: mildew stain resistant grout: epoxy or other suggestions?

I'm a total DIY'er and have used Spectralock multiple times. And as Mongoct says, I never used it until the first time I used it :) I have used it on slate, marble, and ceramic. Not big jobs but I am so happy with the product. And again, as Mongoct says, follow the product instructions! You don't have to mix the whole product up at one time either. I have weighed or measured the 2 part epoxy out and made just the amount I would need, such as the small amounts needed to make up my sample boards, to test different grout colors.


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RE: mildew stain resistant grout: epoxy or other suggestions?

I looked and couldn't find anything from HD about it "crumbling away" but a search turned up 99% positive reviews. I've used it on anything from 1/16" up to 1/4" joints and, no problems. For interior use, it's 3 days "set" time as opposed to urethane's 7 days, and I like the urethane, too.

Set it, let it sit for three hours and you can spill coffee, wine, mustard (you get the idea) and wipe with a wet cloth. Perfectly clean....! Needs no sealing, color consistency is perfect, antimicrobial, etc.

Only reservation I can find is that you shouldn't use a "no rinse" enzematic cleaner with it...like in a commercial kitchen area. Aside that, I wonder why I should have to mix grout again.


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RE: mildew stain resistant grout: epoxy or other suggestions?

I too am a DIYer and have used SpectraLock on three tiling projects. As mentioned above, follow the directions, especially regarding working time. Also, I used the mix-and-freeze method mentioned in several threads on-line.

(Simply mix the epoxy components. Set aside what you will be able to use within the specified "working time". Immediately wrap the remainder in plastic wrap (Saran) and place it in the freezer. When you are ready to use the frozen grout, simply remove it from the freezer, cut off what you will use, knead it until soft/warm with your hands, and install. I've used grout that had been frozen for 3 days.)


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RE: mildew stain resistant grout: epoxy or other suggestions?

Permacolor grout was the one I was referring to... We used silver shadow and siltstone--haven't had any discoloring issues or mildew in the year its been installed so far.


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RE: mildew stain resistant grout: epoxy or other suggestions?

"Have you also heard of " a laticrete "epoxy" product that isn't entirely epoxy and had none of those issues and have no mildew... " "

I have to say I don't have a tremendously deep knowledge over Laticrete's epoxy products in terms of how much of an epoxy they truly are. Or are not.

The Spectralock formulation has certainy been modified over the years, probably a half-dozen times at least.

About all I can tell you is that there is Spectralock. Then there is Spectralock Premium. The main thing about the premium is that it has an anti-sag formulation which makes it easier for vertical applications. There are a few other tweaks as well. FWIW, there used to be an anti-sag additive the user could add to Spectralock if creep or sag was a problem. I never had to use it though.

Then there is Laticrete's IG2000. I think it's IG2000, or 2000IG. It definitely has "2000" in the name. I haven't used it in quite a few years. It's a hard core epoxy. None of the nice user-friendly features of the Spectralock grouts. It's mostly used for commercial installations. I've used it in restaurant kitchens, a veterinarians office, laboratories, etc.

Those are the three Laticrete epoxies I've used over the years.


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RE: mildew stain resistant grout: epoxy or other suggestions?

@stonetech, I did not see 99% recommend. this is the link i found (73% recommend, sounds good), first lowest review says 8 months after install this product has failed. Literally just crumbling away.
http://www.homedepot.com/p/Custom-Building-Products-Fusion-Pro-381-1-Gal-Bright-White-Single-Component-Grout-FP3811-2T/203705529#


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RE: mildew stain resistant grout: epoxy or other suggestions?

NMA~All I can say is that my experience with it trumps the standard "Mix it yourself" grouts. One person had issues with it? Far less than the other grouts.

BTW, I went to the link and couldn't find what you described....

(I'm only a 38 year Pro...so don't listen to me...)


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RE: mildew stain resistant grout: epoxy or other suggestions?

oh stonetech, thanks for your information. in fact, this is probably the choice we are going with giving our contractor's background. quite glad to find this solution and thanks for all of your help. hope it works out


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