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Finally! Quality information about sealing grout.

"Discover the latest and by far the easiest and quickest methods for sealing grout."

You will learn...

...Just ahead, Info I learned from the professional grout sealing, grout staining, and tile grouting company.


...(also learn how to avoid making your floor look worse and taking 3X longer using all the wrong methods)....

Do I need grout sealing?

Probably not, if...

  •  Your tile was grouted using epoxy grout. OR...
  •  Your tile was grouted using a grout admix. OR...
  •  Your tile is being protected right now by grout sealer.

OK, I can almost hear you asking "Rob, how would I know? That's why I came to this site - to find answers!" Fair enough, here is a simple test will provide the simple answer. If you pour a little water on one of your grout joints and the water soaks in... you need grout sealing.

Now that that's settled once and for all, (no need to call a grout pro to your house now!... isn't the web great?...) let's go over some basics about grout.

Grout is made of cement and is porous and subject to taking on the colors and odors of grime, dirt, and other kitchen and bath residue. Why?, because it has little holes that can be filled with either what is spilled or the grout sealer of your choice.

The info on this page is to help you not ruin the grout in your tile floor because you didn't know about sealing grout, how to seal grout, what grout sealer to use, or what applicator to use to put the sealer on the grout. If grout is sealed - but not properly - it can be worse than not sealed at all and could ruin your tile floor. There are a few kinds of grout sealers we will be discussing, and various grout sealing applicators, and a couple methods for cleaning grout to ready the grout to be sealed. So stay tuned...

(Technical Stuff)

  •   I mentioned epoxy grout earlier. This is a special kind of grout that hardens into a non-porous (without holes) material that reminds me of sandy glass. Most homes do not have epoxy grout on the floors or walls. Some counter tops are grouted with epoxy grout. Restaurant floors are often grouted with epoxy. Epoxy grout is more difficult to work with than cement grout. You may wish to change the color of epoxy grout, or it has stained.
     
  •   I also mentioned grout with admix. Some grout manufacturers offer a latex mixture to use in the place of water when mixing grout. Some areas of the world probably use this system more than others. Being in Southwest Florida, USA, I haven't seen much of this. I have grouted with admix twice that I remember. Again, like epoxy grout it's more difficult, time consuming, and expensive to work with than just adding water to cement grout and going to work!... So, because most homes do not have tile grouted with admix in the grout, almost all tile floors need to have grout sealing done. This grout might need sealer to improve it's appearance also.    
    (End of technical stuff)

How will sealing the grout in my tile floor help me?

  •  Less time cleaning grout! By filling the pores in the grout you will be able to wipe your floor clean without the ketchup soaking into the grout.
  •  Less work - Routine cleanings are much quicker and far easier with not having to try to remove stains from the grout each time. Way less scrubbing, equals way less work.
  •  Cleaner home - Mold and mildew can grow in unsealed grout that is continuously exposed to a wet, humid environment such as the bathroom.

 

If you are concerned that your grout is too stained up and dirty, I have good news for you! There is hope - in a minute I will be going over your options - But first let's talk about grout sealers in general...

I would always recommend water-based sealers over silicone sealers.

  •  Water-based will penetrate down into your grout and protect the surface whereas silicone will just form a film on top of your grout.
  •  Water-based will dry clear and stay clear. Silicone will yellow over time.
  •  Water-based is easier to work with.

To me, it's an easy choice, go with penetrating water-based grout sealer.

If you have a new tile floor and your grout looks great -

  •  Choose a clear penetrating water-based grout sealer.

Now, let's talk about that floor with the grout that is too far gone or blotchy.

Once your floor is properly prepared you can choose to color your grout with a grout dye! There are several colors available and they are as easy to work with as clear water-based grout sealer. Imagine not knowing about these colored grout sealers (also known as colorant or grout dye)? You would waste hours trying to restore your grout to it's original beauty. Do you think you will be using a grout colorant when you seal your grout? Remember, you don't have to completely clean the grout, just prepare properly for the colorant to take hold of it. This could save you hours and give your grout a consistent evenly distributed grout color, your friends will think you put in a new floor! And, your grout will be sealed, so you receive all the benefits we already talked about such as less work, less time, and a cleaner floor! Imagine how wonderful it will feel to be done sealing grout and looking at that clean, professional looking floor!

I'm confident that after reading this far you have the knowledge you need to choose your grout sealer and whether or not your grout needs sealing. Are you wondering how to prepare your grout for sealing? That's what we will cover next...

Remember that I said, "grout is made of cement"?

Well, understanding cement will give you an unfair advantage to preparing your floor or wall tile's grout. Cement is made from burned lime and clay. The important fact to glean from that little tidbit is that lime is alkaline. You can use that knowledge to create a little chemical reaction and get your grout clean and ready for grout sealing! How? With an acid! You can clean and prepare your grout with good old fashioned acetic acid! (I'm sorry, I meant vinegar, it's the same thing!) If you would like to use something a little stronger with less vinegar odor you can go to your local home store (i.e. Home Depot) and purchase some sulfamic acid in crystal form. (It is always a good idea to test your tile's glaze for acid resistance in an inconspicuous area  by placing some to sit overnight on the tile surface.) Now you may be tempted to use acid as regular maintenance but this is a really bad idea...

So to properly prepare your grout...

  •  Sweep your floor (skip this step for wall tile, if you want to)
  •  Wet the surface with clean, warm water.
  •  Scrub with a solution of 5 parts water to 1 part vinegar ( or follow manufacturers instructions for sulfamic acid) and a stiff bristle brush. Let the solution sit a minute or so, then scrub an area. Keep the surface wet. If the surface dries with the acid on you are more likely to end up burning your grout with acid. Do a reasonable size area at a time.
  •  Rinse mop the surface with clean, warm water.
  •  Let the surface thoroughly dry.
Ok, let's summarize what we've discussed....
 
  •  Choose clear or colored sealer (remember to go water-based)
  •  Prepare grout for sealing. 

Now you should be armed with the knowledge to ready yourself and your grout for sealing...

I'm about to turn you loose to prepare your grout for sealing, but first it's time to choose an applicator for grout sealing.

Were you wondering what you should use to seal the grout with? I thought so..

Did you think, "paint brush"? I have seen people use everything from a small trim brush to a model car paint brush used for sealing grout! One word here, s l o w, this method is slow and can tend to create an uneven application of sealer. If I pictured myself using a paint brush that I would paint model parts with - I would run from sealing my grout! That picture scares me, I think, "this could take weeks, I don't have the time for this!". I have a lot of respect for the patience of those using this method. Let's pause just for a moment in reverence to these patient souls. *pause*.

I have seen an improvement to paint brushes. Some ingenious person has put a model brush on the head of an applicator bottle. Hey, at least now you aren't dipping your brush over and over again. I have used this system myself. But still there is a better way. First let me ask you, would you rather paint your wall with a brush or a roller? Take a look at a wall in the room you're in, picture yourself using a paint brush to paint it. Feels like work, huh?... Now picture yourself using a roller for the paint. No contest right?

You have to really appreciate the individual who invented a roller for painting (Thank you!). Then like the evolution of the paint brush system, someone put the roller on an applicator bottle. Let me tell you about the first one I saw. It was exciting to see it and I couldn't wait to use it. The problem I had was the roller - it was stiff and hard! The effect was that the sealer wouldn't evenly cover the grout. So my search continued... The good news is that I found an excellent grout sealing applicator with a soft foam wheel roller. In fact it has one wheel for wall grout and one for floor grout (narrow wheel and a wide one). Simple, quick, and evenly distributing grout sealer.

First, picture yourself sealing your grout one joint at a time with a brush. Now, you are holding a grout sealing applicator bottle with a soft foam wheel and you tip it up, give a little squeeze, and roll it across the grout joint, it's that easy! The soft foam wheel is very important-- with a stiff wheel the sealer doesn't cover your grout evenly. With a brush it just takes so long.

Did you ever wonder what you are saving to do the grout sealing yourself?

The price of a pro is between $.50 - $.75 per square foot. That calculates out to about $200 for your kitchen and bathroom. With the information on this page and a few tools and supplies, you can do it yourself and pocket about $150! Not bad for a morning or afternoon of improving your house!

What are others saying...

 April 27, 2005

My name is Karl Johnson and I am the owner of “The Grout Medic” in  Reno, Nevada. Many of my jobs require applying sealer to grout lines.    I have found that the Mann Tile Sealer Applicator Bottle is an easy way to apply sealer and saves you both time and money.

Thank you for allowing me to be a part of your grout sealing project!

If you are one of the hundreds of viewers wanting to purchase one of these fantastic bottles, now is your opportunity!

Thank you.
 

Rob Mann, 
Pres. Mann Tile, Inc.
PO Box 7543
North Port, FL
941-875-2358

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Date Last updated: 09/20/2008 10:56 AM