08:39AM | 03/12/99
I need some help in determining my next course of action. The shower floor is squishing/leaking around the perimeter of the tile floor at the grout line. I regrouted (Elmers tubed grout) several times but the grout never seems to completely dry.There are some spots where the grout spaces are a 1/2inch wide (probably due to settling). My guess is there's some moisture between the tile and the tile underlayment (pan,etc). Is there a product,technique or different grout that I could use before I have to rip up the tile floor. In addition, I had a plumber check under the house and the wood was dry and looked like new; guess I lucked out there. Thanks in advance. Jim


09:22AM | 03/12/99
I don't quite know if this will work, but it might be worth a try. There's a product called "Kilz" which is used for sealing various materials. I've used it in situations where paint refused to stick to walls and ceilings. I'd make sure that you remove as much moisture as possible, then apply the Kilz, let it dry, and then see if your grout will adhere to the Kilz prep'd area. Kilz comes in liquid and spray can. Hope this helps!


12:58PM | 03/12/99

The reason it will not seal is probably twofold.

1. You are not allowing enough time for the moisture to dry out. The moisture is trapped and it has very little room to evaporate. This process could take a few days, a week or longer. You can speed up the process a little by applying heat directly toward the tile(heat lamp, portable heater, etc.).

2. The area that you are applying the caulking to must be thoroughly clean. All of the soap scum, mildew and dirt must be removed. A thorough cleaning, wash with clorox and finally a wipedown with isopropyl or denatured alcohol (there is no oil base in these products).

Once the above two are accomplished you can then apply your caulking or grout and the results should be satisfactory.


08:10AM | 03/15/99
Thanks for the responses. I failed to mention we haven't use this bathroom in three months, so I thought it should be dryed out by now. Anyway, I think I'll just start over by scraping out the tile joints, recleaning and reapply the grout. Question:
Is sanded grout better than unsanded? Seems that sanded would be more rigid and binding.
Thanks again, Jim.
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