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You are here: Home / Planning and Design / Tile Grout: What Kind do I Need for my Project?

Tile Grout: What Kind do I Need for my Project?

July 28, 2015 by DIYTileGuy 48 Comments

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Why do things have to be complicated?

You pick out a grout color and now you’re faced with another decision: sanded or nonsanded? Which kind of tile grout is right for your project?

First, we’re going to break down the tile grouts into two categories cement and non-cement. This post will examine the different kinds of cement grout that are on the market today.

Check out my next post on non-cement grouts like Epoxy or Urethane Stain Proof grouts including Fusion, Flexcolor, Spectralock, and more.

Tile Grout- so many choices…

Many kind of grout charts in a pile
So many options…

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Cement grouts

Cement grout is the most common and well-known type of grout. Advantages of cement grouts include:

  • inexpensive
  • been around forever
  • can be installed in almost any application
  • easiest to work with

Drawbacks of cement tile grout include:

  • Regular sealing
  • Easiest to stain
  • colors can fade over time
  • Prone to discoloration problems

The discoloration problems can be caused by mixing:

  • too much water
  • too little water
  • not mixing well enough
  • mixed with hard water
  • applied in too much heat

You get the picture.

Here are some of the different kinds of cement grout:

Unsanded Grout

Also known as nonsanded grout. It’s used for thin joints or where scratching the surface can be an issue. Although rare, this can happen on sensitive natural stones and when grouting glass tiles.

Common uses for this grout include ceramic wall tiles like subway tiles and also natural stone, such as marble, that is usually set with a tight joint.

The rule of thumb is if your grout joint is 1/8 inch or smaller then you want to use a non-sanded grout. Personally, I think 1/8″ is too big and would limit it to 3/32″.

Tile grout aisle Lowes
Sanded and unsanded grout from Mapei

Sanded Grout

I think it goes without saying that sanded grout has sand added to it. It’s for volume- the same way that you would add gravel to concrete.

Although probably still the most popular grout today the technology is always changing.

Applications for this grout typically include floors, large tile, pebble tiles, and anytime you have a grout joint 1/8 inch and larger.

High-Performance Cement Grouts

This is an actual category of cement grout. While still being in the cement grout category these are not ordinary cement grouts.

They have the best color consistency, no efflorescence, are the densest, and therefore, most stain-resistant of the cement grouts.

These are fast-setting grouts which can be a good thing and it can be a bad thing.

High-performance cement grouts can be used in grout joints as small as 1/16th inch and usually go up to 1/2 inch. This kind of grout is a sanded tile grout.

Some examples are Prism, Ultracolor Plus FA, and Permacolor Select. Note: when purchasing Permacolor Select make sure that you purchase both the base grout and the color as they are sold separately.

Even with the increased stain resistance, they should still be sealed with a grout sealer.

Update: Laticrete now has a product called Permacolor Select NS (unsanded) which is a really nice high-performance grout if you need a non-sanded option.

Grout sealer additives

There are some products out now that are liquids that are added to the grout (instead of water) when mixing and claim to make cement grouts stain proof.

Examples of these products are Grout Boost, Grout Shield, StainBlocker, and Mapei Grout Maximizer.

I don’t have a lot of experience with these products and it seems to me that the reviews have been mixed.

Maybe some of the kinks have been worked out by now but I would encourage you to do further research before committing to these.

carrara marble mosaic floor
Typically it’s best to use non-sanded grouts on marble because of the tight grout joints and because sanded grouts may scratch

Which tile grout is best?

The high-performance grouts are the best performers as far as cement grout goes.

Sanded and non sanded tile grout is just too finicky for my tastes and too prone to callbacks.

There are exceptions, like if the tile is likely to scratch, then I’ll use unsanded grout like Permacolor Select NS. But the bulk of my cement grout usage is Prism, Permacolor, or Ultracolor.

Until recently, the consumer had trouble purchasing these products because they weren’t available in the retail stores.

However, I’ve been noticing these grouts showing up in the aisles in places like Lowes, Home Depot, and Floor and Decor.

They are a little more expensive and are fast-setting which means it may be easier to get in trouble with them when you are installing them.

For these reasons, you may elect to go with a “normal” kind of tile grout. If so, I still recommend putting on a penetrating grout sealer or using one of the additives mentioned above.

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