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Old 07-20-2009, 02:37 PM  
winyah
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Default How to Refinish Brick Floors?

Got a brick floor in the kitchen but the varnish/wax/who knows what/coating is dingy and yellow in some spots, particularly where the mortar is. Any one done any refinishing? I'm hoping sme one has a low odor chemical strip method. I'm afraid a sander / buffer may be ourt of the question since the bricks are not all at the same height and because the mortar is inset.

Any ideas?



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Old 07-20-2009, 05:51 PM  
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You probably just need to give your brick floor a good scrubbing to remove the dirt embedded surface layer. The finish on your brick is almost certainly an acrylic floor finish similar to those used on vinyl composition tile floors. What happens is that dirt will become embedded in the relatively soft floor finish, gradually giving it a "greyish yellow look". Amost certainly the grout lines is just where dirt has accumulated, but it's not really embedded in the finish in the grout lines like it is on the brick.

The way you clean these floors is simply to scrub the floor using a floor machine fitted with a rotary brush. That brush will scrub off the dirt embedded surface layer. After a thorough scrubbing to remove that dirty surface layer of finish, you just mop down a new layer of floor finish to replace the dirt embedded finish you scrubbed off.

This really isn't the kind of work you can do yourself without spending a fair bit of money on equipment.

If you phone any of the places listed under "Janitorial Services" in your yellow pages phone directory, virtually all of them would have both a floor machine and cleaning brushes to fit it.

Take a look at the pictures below:



The top picture shows a Centaur Rabbit III floor machine fitted with a wool bonnet and reservoir tank being used to shampoo a carpet.

The middle picture shows a Rabbit III floor machine fitted with a 40 pound weight and a cleaning brush being used to scrub a terra cotta tile floor pretty hard.

The bottom picture shows a Rabbit III fitted with the optional fluorescent light accessory, a reservoir tank and a cleaning brush being used to clean a ceramic tile floor.

Normally, on smooth flat floors, like vinyl composition tile floors, a large nylon "Scotchbrite" pad is used to scrub the dirty surface layer of finish off the floor, and then a new coating of floor finish is applied.

On ceramic tile floors, they do exactly the same thing, only they use a brush instead of a nylon pad. The bristles of the brush get into the grout lines (or mortar joints on your floor) to clean them out too.



There are different kinds of cleaning scrub brushes. Some brushes will have long thin soft bristles, and are used just to polish floor finish. Brushes meant for cleaning will have thicker, stiffer bristles which will scrub the floor much more agressively. The most agressive brushes will use stiff bristles where abrasives have been added to the liquid nylon plastic before drawing that nylon into the long fiber from which the bristles are made. Thus, brushes made from nylon bristles that have abrasives impregnated into them are very aggressive, and are typically used to strip finish off floors.

After scrubbing the dirty surface layer of finish off the floor, they lift the dirty cleaning solution off the floor using a wet/dry vaccuum cleaner.

Then you spray down clean rinse water and scrub the floor a bit more just to dissolve any residual cleaning solution into the rinse water and then they collect that rinse water off the floor with a wet/dry vaccuum.

As soon as they finish lifting the rinse water off the floor, they can put the first coat of new floor finish down. You can typically only buy floor finish by the gallon, 22 liter "enviropac", 5 gallon pail or 45 gallon drum. In your case, I'd recommend you buy a gallon of floor finish and mop it all on in about 4 or 5 moppings. The thicker the layer of floor finish you have on your floor, the better protected the floor is.

Your best bet would be to hire a janitorial company to scrub the floor clean, and then mop a gallon of floor finish onto the floor to provide a new wear layer to last you another 10 or 15 years. Basically, you use a special floor finish mop to mop the finish on your floor. You store the mop head in a clear plastic bag (with no printing on it) so the mop doesn't dry out between applications of finish.

I, myself, prefer "Carefree" from the S. C. Johnson Wax Company, but CastleGuard by the Buckeye Company or just about any high solids floor finish from any national company will give you a hard protective gloss on your floor. Carefree comes in both high gloss and matte. You might prefer a matte finish over brick.

http://www.centaurmachines.com/

http://store.markoinc.com/rotfloormacb.html

You can rent a floor machine at Home Depot, but it takes a bit of practice to learn how to use it. Also, I doubt you'd be able to rent a cleaning brush from Home Depot. Mine cost me $140, so it'd be cheaper to hire a janitorial company to clean your floor with their brush than to rent a floor machine and buy a brush to do the work yourself.

Any company you hire to clean your floor will give you advice on where to buy a finish mop (if they don't offer to sell you one themselves, and where to buy a top quality acrylic floor finish (if they don't offer to sell you a gallon of the finish they use).

The janitorial service company will see the sense in them cleaning the floor and you mopping on a new coat of finish yourself. The reason for that is that if you wanted them to apply the finish too, then they'd have to send a guy down to your place to mop on a new coat of finish as each coat dries. It only takes a few minutes to put each coat on, but it'll take several hours for each coat to fully dry. So, including the travel time to and from your house, you'll be paying a lot for someone to do something you can easily do yourself.



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Old 11-03-2009, 03:29 AM  
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Default brick floor problem?

I have a mortared brick floor in my great room with no finish on it. The floor tends to be gritty, and the adjacent wood floor is getting scratched as we track the grit over it. Can I seal the brick, and if so, what should I use?

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Old 11-03-2009, 10:52 PM  
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Superpack:

I've never dealt with brick before, but I expect any normal floor finish intended for terra cotta tile floors would be suitable for use over brick.

Your best bet would be to open your yellow pages phone directory to "Janitorial Equipment & Supplies" and phone around to find out who sells either "Johnson Professional" or "S. C. Johnson Wax" products in your area. Find out from them who the local S. C. Johnson Wax sales rep is, and ask him what floor finish he would recommend for brick.

Basically, the thing most people don't understand is that to have nice looking floors, you need to maintain them, but the tool you need to maintain a floor is something called a "floor machine" that can cost anywhere from $1200 to $2000 brand new. You can get a used one for considerably less.

As people walk on a brick or terra cotta floor with floor finish on the floor, dirt will get embedded in the floor finish under foot. It's that dirt embedded in the surface of the finish that makes the floor look crappy. The procedure is to scrub the dirty surface layer off the floor using a floor machine and a cleaning brush OR to strip the finish off the floor entirely and put a new coat of finish on.

You really only need the floor machine to scrub the dirty surface finish off. Stripping the finish off entirely can be done without a floor machine, but it can be a pretty messy job. Also, maintaining a floor with a floor machine is more suited for an apartment block where the apartment is completely empty every 2 or 3 years so that you can scrub the whole floor with a floor machine. If it's a house you're wanting to maintain the floor finish in, then you're talking about moving all the furniture off of the brick floor periodically. (You can ALSO just machine scrub the floor in the traffic lanes and apply more finish in only those areas to replace the finish scrubbed off.)

Normally, floor machines will use nylon pads to clean or strip smooth floors. However, those nylon pads won't get into grout lines or mortar joints where dirt accumulates. So, you need to use a brush to clean tile or brick floors. Here's a picture of a floor machine fitted with a cleaning brush being used to clean a ceramic tile floor. It'd be exactly the same set up to clean a brick floor.

Your local S. C. Johnson Wax sales rep would be the best person to advise you on what to use to clean (or strip) your existing brick floor, and what kind of finish to put down over it. Also, if the Janitorial Supply place won't tell you the name and phone number of the local Johnson Wax sales rep, just go to Johnson Professional's or Johnson Wax's web site, click on the Contact Us link and ask them who your local sales rep is and how to get ahold of him.

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Old 08-29-2010, 11:39 PM  
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Janysek:

Quote:
Brick flooring is immune to maintenance issues like staining or colour-fading.
Brick is a porous material. So is brick mortar. Both will stain if you spill the wrong liquid on them. Try pouring some Saniflush or Interior Wood Stain or maybe some Easter Egg Dye onto an unsealed brick floor and see what happens.

To avoid the risk of stains on a brick floor, people will apply an acrylic sealer/finish to the brick to protect it from stains.

But, that sealer/finish eventually gets embedded with dirt underfoot, causing the traffic lanes to start looking dirty and worn out. Consequently, it is the sealer and/or finish on the brick that needs to be maintained to keep the floor looking attractive.

You don't have to put a sealer or finish on the floor, but if you don't, then you run the risk of it being stained by liquid spills.

The only flooring that is immune to maintenance issues (besides regular cleaning) is a stainless steel floor or a synthetic rubber floor.


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