Followed instructions exactly, DID NOT add additional water. Mixed by hand with a margin trowel on the bottom of a bucket. Mixed 1 lb of Prism #512 (light smoke) with 111 ml of water. If we need to we can have a rep come out and take a look at the job.Ī piece of CBU, 13x13 glazed porcelain tiles FlexBonded to CBU with 3/16" grout lines. If you could contact me at 80 opt.3, then you can ask for me and we can discuss it further. This additional moisture can hurt the grout. Sometimes the spoging process is used to clean the tile rather to shpe the joints and the grout is spoged 2,3,4 times in order to get the tile clean. Too much water can cause the grout to be soft. This can cause problems.ī.) Too much water during the sponging process. When you 1st add the water to the product it appears that it is not mixing in properly and the tendency is to add more water. There is a sealer in the grout and there is a learning curve to the proper mixing of this product. I understand that you have already talked to someone with Customs and some of these things have already been dicussed, but for the interest of the guys on this sight I'll revisit some of the problem causer with this product.Ī.) Too much water in the mix. If anyone reads this and has used it I would love to hear any feedback.There could be a number of things that could have a occured. I plan to try the first stuff, since it was suggested by the Prism rep. A local tile store mentioned a product called AntiHydro too. It's supposed to penetrate and strengthen without changing the color. That said, he recommended a product called Custom Thinset Mortar Additive, which he said Home Depot carries. He said if you use a drill mixer to use it at a low speed, or better yet just mix by hand.
Another thing that I learned from the Prism representative (who was very helpful, concerned and professional) is that you don't want to mix grout with a drill mixer on high speed. Since I had read all about the dangers of too much water- during mixing and cleanup, I felt I was really careful to avoid that, but as that is (I'm told) the most common problem it's possible I didn't avoid it enough. It is in similar condition to a few days ago: hard to the touch, but if dampened, left for a moment, then wiped again with a damp sponge it seems to soften and I get some slight smearing, and it's easier to scratch with a fingernail. I thought I should post a follow up for the benefit of anyone researching prism grout on this site. We were going to use Prism alabaster- any recommendations? This problem would be even more terrible around the tub/shower. We are about to start our walls and I am thinking perhaps I shouldn't use Prism grout, since I don't even know what I did wrong. I really, really, really, hope we can salvage this floor. Between the 1" hex and this being our only bathroom, and the fact that we are ending our second month of living with a porta potty in the driveway.
Will this be any better after sealing? Is there anything else I can do to help it to cure harder? I can't imagine trying to re-grout this floor. The grout was made in 2009 according to its sticker on the bottom, which says 0908501C. Was careful to clean with a well wrung sponge. I mixed with cold water until thick, slaked, mixed, applied. And I have weak fingernails! That by the way is from a different bag- the one intended for our walls, not the one I used on our floor. However, I went and dug up a test board I made, where I mixed a small amount by hand in a little bowl and tiled some spare hex's, and sure enough, I can scratch that out even when it's dry. Today during some cleanup I noticed the gray seemed to be smearing slightly, which led me to discover it can be scratched with my fingernail.Īfter some research I thought perhaps my problem was over-mixing with a drill- the grout DID seem thick- but sort of lighter than peanut butter- like a whipped peanut butter- (since prism advertises being lighter than other grouts anyway I didn't worry much about it). It looked beautiful and seemed to dry nicely. 4 days ago we grouted our new 1" hex bathroom floor with oyster gray Prism grout.
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