VERY frustrated!!!!!!!!!!
I installed about 1500 sf of porcelain tile on concrete slab and used the polyblend sanded grout for the grouting. I followed the instruction explicitly but after a month or two I noticed it starting to crumble away. I could literally scratch it out with my fingernail. No cracks, just turned to powder. All the tiles were snug and not loose anywhere either. I figured I must have made a mistake during the mixing process, and as I had a few bags left over I proceeded to remove ALL of the grout to reinstall.
Making absolutely sure every step was followed verbatim per the instructions, I reinstalled the grout only to have the exact same thing happen!!! IT WAS NOT the installation process that was the mistake. It was the grout!!! I figured I had gotten a bad batch or something. I didnt have time to spend another few weeks redoing the floor AGAIN so I just left if for a few years and endured the nasty unsightly grout on my new expensive tile until I had the time to redo it.
Well, third times a charm right?!!! Over the winter break I removed just about all the grout AGAIN and bought some new bags of polyblend grout to do the job. I waited the recommended 3 days and sealed, that was yesterday. I went to an inconspicuous area to test the strength and with my fingernail was able to gouge a nice hole in the grout. This is absolute BS! If you value your time, energy and sanity DO NOT BUY POLYBLEND sanded grout!!!! Its garbage and just expensive sand!!!
I installed about 1500 sf of porcelain tile on concrete slab and used the polyblend sanded grout for the grouting. I followed the instruction explicitly but after a month or two I noticed it starting to crumble away. I could literally scratch it out with my fingernail. No cracks, just turned to powder. All the tiles were snug and not loose anywhere either. I figured I must have made a mistake during the mixing process, and as I had a few bags left over I proceeded to remove ALL of the grout to reinstall.
Making absolutely sure every step was followed verbatim per the instructions, I reinstalled the grout only to have the exact same thing happen!!! IT WAS NOT the installation process that was the mistake. It was the grout!!! I figured I had gotten a bad batch or something. I didnt have time to spend another few weeks redoing the floor AGAIN so I just left if for a few years and endured the nasty unsightly grout on my new expensive tile until I had the time to redo it.
Well, third times a charm right?!!! Over the winter break I removed just about all the grout AGAIN and bought some new bags of polyblend grout to do the job. I waited the recommended 3 days and sealed, that was yesterday. I went to an inconspicuous area to test the strength and with my fingernail was able to gouge a nice hole in the grout. This is absolute BS! If you value your time, energy and sanity DO NOT BUY POLYBLEND sanded grout!!!! Its garbage and just expensive sand!!!