There are three basic types of grout available for any tiling job. It is important that you take to the time understand each type so that you can choose the right one for your specific project. If you choose the wrong one you could end up destroying your tile and watching your grout dry up before it can be used. You can avoid the unnecessary expense of replacing materials by taking the time to educate yourself about grout in advance.
Unsanded grout is a great option to choose. But, it should only be selected for areas that have grout lines smaller than 1/8”. This is because the grout actually shrinks as it dries. So, if the grout line is too wide, then the grout will shrink and no longer be filling the intended grout line completely.
For any grout lines that measure 1/8” or more wide, you should choose a sanded grout. A sanded grout does not shrink because there is sand added to the mixture. Although it is a great option for any tiling project, you should be careful when you are using it with polished tiles as the sand in the grout can actually scratch the tile. If you are unsure whether your tiles will be damaged by using sanded grout, you can test a piece of tile in advance. If sanded grout does damage the tile, then you should look toward epoxy grout instead.
Epoxy grout can be used in any width of grout line. It can also be used with any type of tile without the fear of damaging the tile. Other benefits of epoxy is that is it both stain resistant and water proof. However, it does dry fairly quick so it must be applied immediately after mixing. And, it is more expensive than sanded or unsanded grout.
Getting your Mind-set on Thinset
Grout is not the only choice you need to make for applying your tile. Although it is not as visible as grout, you must also choose your thinset wisely to ensure an excellent finished product. Thinset is available in either white or grey and is the mortor that is used to apply your tile to the intended surface. It is recommended that you use white with lighter colored grouts and grey with darker colored grouts.
Just like grout, thinset is available as either sanded or unsanded. You should select sanded thinset for projects like flooring and counters while using unsanded on walls, counters and fixtures. It is a good idea to stay away from quick setting thinset so that you are not rushed to finish your job before the thinset dries. This will give you the time to make sure all tiles are installed and aligned properly.