Is it advisable to put a second coat on grout joints using 511 Impregnator? I noticed on the can the statement that "a second coat may be necessary for some surfaces". I am only going over grout joints (about one hour's work this afternoon) but I had a difficult time determining if I was getting sealer on all of the grout (the clear sealer just did not show up real well on the grout joints). I ended up using a toothbrush to brush the sealer on the quarter-inch grout joints.
My project is a very small bathroom with a tiled floor, partially tiled walls and a tiled shower. I sure want the shower to be well sealed and wonder about a second coat at least in that area. I have some sealer left and I am considering brushing some more on the grout joints? I also wonder if a second coat 24 hours after the first coat is the acceptable.
Your comments and opinions are welcome.
Thanks, Terry