Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Can I use this product to regret shower tiles?
Document: The instructions mentioned use of a few acid based anti-hazing products, which I didn't try. I took a chance and applied paint thinner to the tiles, which easily dissolved the haze, without scrubbing. Problem solved. The floor, including the grout, looks great. However, because this product does not perform as intended, I cannot recommend it.
I installed this product as part of a luxury vinyl tile upgrade to my kitchen floor. This grout is similar to cement based grout during the application process. I carefully read and followed the directions which emphasized keeping the tile surfaces wet with the intention of preventing the grout from filming over. I discovered it is impossible to keep the grout from filming over and hazing the tiles, and once hazed, the residue cannot be removed with water or acid. It cannot be scrubbed off the tiles either.
I was experimenting as i went along. I had two buckets of clean water and always wiped as much as i could after grouting. Once it dried, I had to scrape a few small spots on the block edges in the following days with a razor, and use that nano-clean scrubbing product with a microfiber towel. That works pretty good.
I used Fusion Pro grout in one bathroom and epoxy grout in the other. After four months the epoxy grout looks perfect, LATICRETE SpectraLOCK I bought from a local big box store. The Fusion Pro was from a local tile supply shop that recommended the product. Fusion is easier to work with and cost less than epoxy but I am worried its not holding up in the shower pan. The grout was allowed to set for two weeks before water was introduced, more than the min 3 days.
So if you are a DIYer and not that concerned with it taking more time to clean up as you go, and after, I think the final result much better than the traditional grout. You can see, its just not as porous. I am not sure what factor is preventing the mildew, but don't care. It works.Note: I did not use on the floor, just the walls. Also..I had a touch of tennis elbow when i did this...ouch!
We used this product as a low cost alternative to the epoxy grout systems that are currently on the market. We were particularly attracted to the uniformity in color and appearance that it had offered on previous floor installations. We installed it in a shower only to have it fail on the mosaic floor tile joints within the first three months. It started to &#34;dissolve&#34;, turning to the consistency of silly putty.
Sent pictures and waiting...A contractor did the work in the shower/bathroom, but I did apply the grout...3/26Custom called me back. They requested some more pictures and a reference to indicate gap in tile. The floor tile is 2' mosaic, I believe with 1/8" gap. Since its tavertine some spaces with the chipped edge are a little larger so is the diagonal.
That said the epoxy grout hasn't turned pink in the same time. This is prob normal as I have only cleaned the shower floor once - ok I need to clean more often. I tried to post my concerns on contractors talk and John Bridge but couldn't as I am not a contractor. Guess I can post in an other area and I'll have to do that...I called Custom the maker of Fusion Pro and the said it shouldn't be soft, its not.
I told him I can send them a video, he didn't want it. I don't think the hardness will be a problem from wear standpoint, but it worries me from a water penetration/mold/bacteria point...My recommendation is beware...wait some time to make sure this works as advertised. Did I get a bad batch? Right now I'm wishing I used something else in the shower pan area.
I bought this based on the internet hype, most from the makers website. How smart is that? I was scraping out old sanded grout that was starting to fall out in places, and always had mildew. This was a shower Glass Block installation. I had previously used those sealers on the old grout(after cleaning with bleach/applying Tilex), but the mildew always came back after a month or so.I scraped out the old grout as much as i could, and replaced with this.
Answer: yes