Epoxy Crack Injection

Epoxy Crack Injection at the Plastics Omnium Bumper Plant

We get a call from Walbridge the contractor building the new Plastics Omnium bumper plant in Chattanooga, TN. A flood had filled chest deep in a 260 x 30 pit that would be used as a paint booth for the bumpers for the cars being manufactured at Volkswagen’s Chattanooga plant.

Water pouring in from all the wall bases and over 500 linear feet of cracking in the floor. At one point the water was chest deep. It took three days for a 3″ line pump to get it out. So we then drilled portholes through the 8″thick floor and along the wall bases on 6″ centers. Then we installed one way ports into which a hydrophobic epoxy was injected at 4,000 psi.

Gradually, the pit dried out and… over 2,500 ports later we would finally be done. 

CRS Launches New Website

If you have not been to Concrete Repair Specialist’s website lately, now is a good time to visit it. CRS launched the redesign of its website, ConcreteRepairSpecialist.com, to provide customers and visitors with even more relevant and easy to find information on concrete repairs and decorative concrete services in the Chattanooga, TN area.

CRS website has always been an integral part of our business and an important tool to share information with visitors and customers. “The redesign website has a new look and improved functionality to ensure an easier and more engaging experience for users,” said Sharon Gordon, Director of Marketing for CRS.

The revamped site features an updated look with enhanced features, including easier navigation, updated information on sites throughout. The new website is also responsive so visitors will be able to view it on tables, mobile phones and computers. A special thanks to Main Street Marketing for the re-design.
To view the new site, go to ConcreteRepairSpecialist.com.

St. Elmo Fire Hall Stained Concrete Floors

The St. Elmo Fire Hall was once a working fire station that served the St. Elmo community. The beautiful red brick structure has been re-purposed to a host one-of-a-kind events.

It was built in 1934 servicing a 1,000 gallon fire engine and office for the firemen. It was closed in the 1980’s and became neglected over the next 20 years.

This became on of our favorite projects. We had the opportunity to help turn the old concrete surfaces into a distressed stained concrete floor that was easy to maintain. Now the old building takes on new life by hosting both private and community events. Next time you are looking for a unique place to host your next event, be sure and check out St. Elmo Fire Hall.

After replacing the old concrete

After replacing the old concrete

Removing damaged concrete

Removing damaged concrete

St Elmo Fire Hall

Before photo of the old concrete surface.

Photo by St Elmo Fire Hall

After photo of the distressed finished in Moroccan Dunes, semi-transparent stain. Photo by St Elmo Fire Hall

St Elmo Fire Hall

Before photo of the old concrete surface.

Photo by St Elmo Fire Hall

After photo of the stained concrete floors in a semi-transparent Colorseal. Photo by St Elmo Fire Hall



The Cleaning and Care of Polished Concrete Floors

From Concrete Contractor Magazine

The Cleaning and Care of Polished Concrete Floors

Care of Polished Concrete Floors

A burnisher is a high-speed floor machine used to polish and clean floors. Pictured is the Battery Glazer 17 floor machine that operates on green batteries instead of a power cord. Photo credit: Tornado Industries

Many installers of concrete floors, in both private homes and commercial facilities, are the first ones asked when customers want to know how to clean and care for their new concrete floors.

In commercial locations, contractors can expect such questions from cleaning professionals as well. Custodial workers are very familiar with vinyl composition tile (VCT) floors, and most have worked with different types of stone floors or terrazzo, which is in the concrete floor family, but they are less familiar with maintaining polished and unpolished concrete floors. Invariably, the building managers who are their customers will give the cleaning professionals your name—as the installer—for instructions on care and maintenance of their new concrete floors.

It’s necessary for contractors to have a good understanding of how to care for the floor once installed.

Daily cleaning

If no finish has been applied to the concrete floor, all that is generally needed is that the floor be dust mopped and damp mopped using a neutral-pH cleaner. Because there usually are no grout areas, no grout cleaning is necessary.

However, contractors should encourage their customers to use backpack vacuum cleaners instead of dust mopping the floor. Dust mopping generates a lot of airborne particles that can be harmful to the cleaning worker and building users. Plus it has a tendency to push dust and debris from one floor area to another. A new generation of light and comfortable backpacks has been introduced that pull soil and debris from the floor, instead of pushing it around. This is healthier for the cleaning worker, building users, and more effective as well.

On large concrete floor areas, like those in a grocery store, an effective automatic scrubber should be used. A fully automatic floor scrubber is designed to apply cleaning solution to the floor, agitate or scrub it, wet-vacuum it, and then squeegee it dry, all automatically and all in one pass. Should cost issues arise regarding purchasing one of these machines, mention to your customer that in most cases an automatic scrubber can pay for itself in a few months because it improves worker productivity so significantly. After that, it pays dividends.

Interim cleaning

Interim cleaning is necessary if a sealant and/or finish has been applied to the floor and installers are encouraged to suggest to their clients that a sealant specially designed for concrete, and possibly a floor finish, be applied to the floor.

Interim cleaning also involves burnishers if a high-speed floor finish has been applied to the floor. A burnisher is a high-speed floor machine used to polish and clean floors. The machine not only removes surface level marks and soils but leaves the floor with a “wet look” shine. While they come in different sizes and with varying features, an effective burnisher for larger commercial locations would have the following attributes:

  • 2,500 RPMs (rotations per minute)
  • Adjustable pad pressure (up to 30 pounds); more pad pressure may be needed to remove more difficult soils.
  • Variable speed control, to address the needs of different floors and their finishes.
  • A built-in vacuum; this helps prevent dust from being inhaled by the user or released into the environment.
  • Battery powered provides the user much greater flexibility and maneuverability.
  • Auto-motion propulsion provides a gentle push assist, reducing worker fatigue and improving worker productivity.

In many facilities, floors are burnished every evening while in others floors are burnished less often, perhaps weekly or monthly. Contractor’s whose customers want a high-gloss shine on their concrete floors are encouraged to suggest that the floors be burnished frequently.

Restorative cleaning
Restorative cleaning is typically necessary once or twice per year, however restoration cycles can be postponed if the two steps just discussed are performed regularly and properly. Restorative cleaning is labor intensive, which makes it costly. It can also be potentially harmful to the environment. For both reasons, many end-customers prefer to delay the procedure. When a floor is restored, a low-speed floor machine (175 RPMs or 350 RPMs) is used to strip and remove all finish (or sealant) from the floor. It is an involved process with many steps; however, once it is completed, the concrete should look much as it did the day it was installed. The next step is to reapply sealant or finish. In most cases, if a sealant is used, two thin applications are necessary. Once it has thoroughly dried, three to six thin coats of floor finish can be applied to the floor on top of the sealant. The more thin coats applied, the greater the shine.1

Contractors are advised to suggest one more thing to their customers: select trained floor care technicians. Floor care and maintenance is an involved, complicated process. A trained technician will know how to address most challenges and will keep your customer’s concrete floor looking its very best.


Ed. Note: Sean Martschinke is a CIMS ISSA Certification Expert (I.C.E.) and the product manager for Tornado Industries, a manufacturer of professional floor care equipment as well as other cleaning tools and products. He may be reached through Tornado’s website at www.tornadovac.com.


1. Some floor finishes are made for low speed floor machines and others are made for high speed burnishers. It is very important to select the proper finish for the floor machine used. A burnisher used on a low-speed floor finish will likely remove most of the finish.

49th Annual Tri-State Home Show

49th Annual Tri-State Home Show

Concrete Repairs Specialist will be exhibiting at the 49th Annual Tri-State Home Show, March 13 – 15, 2015. We will be available to answer all your questions regarding concrete including decorative concrete options as well as how to repair damaged concrete.

If you are planning a new concrete surface, this is a good time to discuss your options and plan for installation.

We look forwarding to seeing at the show. Visit our booth #G24!

For more information on the Tri-State Home Show, visit their website at Tri-State Home Show.

Tri-State Home Show

3 Plus You segment on Concrete Repair Specialist

3 Plus You segment on Concrete Repair Specialist

Friday, February 27, 2015; Concrete Repair Specialist was featured on WRCB-TV3’s local show known as 3 Plus You. Julie Edwards talked to David and Sharon Gordon about how Concrete Repairs Specialist can help bring new life to your basement, pool, driveway and other concrete areas around your home.

If you thinking about putting your house on the market this spring, consider how your concrete looks. Buyers have been know to hammer sellers on their asking price due to damaged concrete driveways, patios and pool decks. CRS can give your house designer curb appeal that will help sell your house.

Spring is right around the corner! If you would like your pool restoration done before Memorial Day, call us now to get on our schedule.
WRCBtv.com | Chattanooga News, Weather



Metallic epoxy flooring system helps an outdated TV news studio go high-tech.concrete-construction

by Taylor Gordon

In March 2013, WRCB-TV News Channel 3 in Chattanooga, Tenn., debuted a new, half-million dollar studio after about 18 months of planning and renovating. The floor-to-ceiling makeover transitions the NBC-affiliated news station to “high-definition” programming.

Epoxy Studio Floor

WRCB-TV News Channel 3 Metallic Epoxy Studio Floor

The new set contains more technology and can be used for multiple types of local programming for viewers. Just as important, “We created a set that is uniquely Chattanooga and represents who we are as a news team,” says WRCB News Director Derrall Stalvey.

The floor, designed to complement the TV3 logo and blue-skies color scheme, mimics the sensation of looking down on the ocean from the window of an airplane. “We wanted the experience of walking into the studio to feel like entering a place where the magic happens; walking with clouds at your feet,” explains David Gordon, owner of Concrete Repair Specialist in Chattanooga.

Transforming the floor

The news station’s old, painted-concrete floor did not hold up very well to heavy cameras constantly rolling across the surface. Gordon decided that an epoxy system with a clear topcoat would better withstand that kind of traffic. To create the desired clouds, water, and sky effect, the contractor used HyperREZ FloorGuard metallic epoxy system in “true blue” (a bright-blue color that looks like a stain) to refinish the floor.

Before Photo

Before photo of WRCB-TV Channel 3’s old painted blue studio floor. Photo courtesy of WRCB-TV 3.

The application required several steps. First, the crew prepped the floor with a planetary grinder using 30-grit diamond to strip the paint from the old floor and prepare the surface for the new flooring system. Crew members then cleaned the floor with vacuum dust extractors and applied a black primer by roller to provide a richness of color to the final look. For even more depth and dimension, they used flat squeegees to create light and dark areas in the primer.

After applying the primer, workers wore spiked shoes to roll out the thick-bodied, metallic blue epoxy. To create the illusion of waves and movement, the crew used a back-rolling technique in various passes while the epoxy was drying. This can be done because the metallic, glitter-like particles in the epoxy can move within the epoxy while it is still wet. Also, by stirring the product and applying it over the black primer coat, the crew was able to simulate a 3D cloud effect. They then sealed the floor with a protective, clear urethane topcoat.

The highly reflective floor literally mirrors the studio’s high-tech design. Plus, it can be easily maintained by damp mopping.

Gordon is a Chattanooga, Tenn.-based freelancer who writes blog articles for local businesses.
Camera-Ready article is featured in January 2014 issue of Concrete Surfaces magazine.

To view the slide show of the studio’s transformation visit ConcreteConstruction.net

Epoxy Floor

After photo of the metallic epoxy flooring system used to give WRCB-TV Channel 3’s Studio Floor a high-tech look.

CRS Repairs Concrete Substrates

CRS Repairs Concrete Substrates

Before installing floor covering, flooring and adhesive manufacturers recommend that the concrete surface be structurally sound, dry, solid and stable. If the concrete substrate is damaged or too rough, it can prevent the adhesive from bonding or damage some floor coverings. Other issues that need to be addressed before floor covering installation is moisture vapor emission and high pH.

CRS is certified in moisture remediation offering systems to help correct moisture problems.
CRS also offers surface preparation for floor covering installations. We install self-leveling compounds that can repair damage and re level concrete surfaces.

The homeowner’s concrete surface was not poured properly. When the homeowner had a water leak, the concrete surface flaked and started coming apart leaving the surface severely damaged. The old floor covering was removed. Then CRS removed the old adhesive with a grinder. Any loose unstable concrete was also removed. The concrete surface has no adhesive residue and the remaining concrete is sound and stable.

Damaged Concrete Floor

The concrete surface after grind prep and loose concrete was removed.


A self-leveling polymer-concrete is poured onto the old concrete surface. This will give the homeowner a new smooth surface. Floor coverings can be installed over the polymer-concrete once it has fully cured.

Contact Concrete Repair Specialist for more information on concrete surface preparation… 423-593-7413. Visit our website at ConcreteRepairSpecialist.com.


Crew installing self-leveling system

Applying the polymer-concrete onto the old concrete surface.


Crew troweling self-leveler

The crew troweling the polymer-concrete.



After the polymer-concrete was installed, it has to cure before the new floor covering is installed.


House Chatt: Winterizing Your Concrete

House Chatt: Winterizing Your Concrete

Get ready for winter! David Gordon with Concrete Repair Specialist discusses what you need to know about repairing and preventing concrete damage on WDEF News Channel 12’s HouseChatt with Matt Hullander.

If you miss the segment, you can watch it here. Just click on the video below. To learn more about Concrete Repair Specialist just visit our website. You can either email us at Info@ ConcreteRepairSpecialist.com or call 423-593-7413 to get answers to any of your questions.







News Channel 12

7 tips for hiring the best contractor

7 tips for hiring the best contractor

By Dana DratchBankrate.com

A good contractor is hard to find

Best ContractorThe hardest part of a home renovation might be finding the right contractor.

Often getting the best one for your home — the true pro who shows up and delivers quality work on time and on budget — depends on doing some serious screening before the job starts, says Mike Holmes, professional contractor and host of HGTV’s “Holmes on Homes.”

And that could be one area where a lot of homeowners fall short. “I don’t think people try half as hard as they should,” he says.

Too many times, he says, enthusiastic homeowners hire the first person they interview. “They get so excited that they made the commitment (to do the renovation or upgrade), that they forget the job they have in front of them,” he says.

“One thing I’ve learned: It will take you longer to find the right contractor and check out the job, than to do the job,” he says.

To make it a little easier, here are seven pro tips for getting the right contractor for your next home addition, upgrade or renovation.

Slow Down

“Take your time,” Holmes says. “Do not be in a hurry.”

You’re not ordering a cup of coffee to go, he says. This is a home alteration that you’re going to live with every day.

The best thing to do before you start interviewing contractors is educate yourself on the project, he advises. The more you know, the more able you’ll be to ask savvy questions and make smart decisions concerning the project. “Do you want to run (category)-five or (category)-six (cables)? How far do you think you need to go? Do you need to gut your kitchen?” he says.

You can also make a wish list: What are the things you’d like to do in conjunction with this project?

One wise move is to call your local government and find out what kind of permits you’re likely to need, Holmes says.

Talk to Friends and Neighbors

Referrals are a primary source for finding a good contractor, says Paul DiMeo, designer and co-star of “Extreme Makeover: Home Edition.” “You want to make sure that, whoever you’re using, that you have a personal referral,” he says. “That’s why it’s best to talk to a friend.”

Then follow up with your own due diligence, says Holmes. Good referrals alone are “not enough,” he says. “Just because a friend liked the contractor, doesn’t mean the job was done right. But that’s a good starting point.”

Another promising sign is when two sources recommend the same pro. When Norm Abram, the master carpenter of “This Old House,” needed someone to retrofit a home with air conditioning, he asked one of the show’s contractors for a recommendation. The same name was mentioned again by a local pro Abram respected.

“I went ahead and ended up hiring him, and he did a great job,” Abram says.

Do your part on the other end of the referral process, too. When you do find someone great, “tell everyone,” says Holmes.

Determine the contractor’s specialty

“Sometimes people assume all contractors are equally qualified to work on different types of houses,” Abram says. Interview contractors who do the type of work you need. For instance, if you want a renovation, you want a renovator, rather than a new-home builder, he says.

Look for someone who focuses on homes that are the same age and style as yours, Abram says. While a contractor may have more than one specialty, you want to make sure that your type of home is one of the contractor’s strong suits.

Make a good match

Interviewing a professional contractor is like dating, Holmes says. You want to get to know the person. Ask about his or her experience, life history, specialties, and what work he or she really loves to do.

Also cover the nuts and bolts: Is the contractor licensed? Insured?

“You can’t ask them enough questions,” says Holmes. “And if they’re not pros, they’re quickly going to leave your house.”

At various points during the job, the work has to be inspected, and you want to be there for each of these milestones. Mention this before you hire. “Any contactor who says ‘I don’t want you there,’ you don’t want to deal with them,” Holmes says.

Interview contractors until you find the right one — even if it takes awhile. “You have to keep going until you’re 100 percent happy,” Holmes says. “Trust your instincts.”

Get (and check) plenty of references

Forget the old rule of three. Your prospective contractor should show up with at least 20 references, says Holmes. More is better.

How many should you call? “All of them,” Holmes says. Ask about details that really matter to you: Did they start and end on time? Clean up the mess? Follow up a month later to see that everything was OK? Did the price escalate from the estimate even if the job didn’t?

If you can look at projects that were similar to the one you’re contemplating, go for it. “Most homeowners who have a good job will be happy to show it off,” Holmes says.

As you contact former clients, “follow up with someone most homeowners don’t think of: local suppliers,” says Abram. “No one knows a contractor like their suppliers.” The relationship is a good benchmark, he says.

Don’t part with too much money at one time

If your contractor is any good, he or she likely won’t be able to start for a few weeks. So don’t part with a large chunk of your renovation money upfront.

To book the job, you should put no more than 10 percent down, Holmes says. And even that should “should not be more than $1,000,” he says.

Follow up in 10 percent increments as the contractor meets certain preset milestones on the project. But that doesn’t mean you should “pay time and labor as they go,” says Holmes. “You want it to be a set price.”

Schedule the final payment — about 15 percent of the total — for 30 to 45 days after the job is complete, he says.

Incremental payments ensure against disappearing contractor syndrome. Withholding the last payment guarantees that if there are any problems after the job is done, they’ll be fixed promptly.

This type of payment schedule is business-as-usual for professional contractors, Holmes says. They’ll say, “once you’re totally satisfied, call me up and pay me,” he says. “It gives you that window in case things go wrong. And little things can go wrong.”

Be first to use the ‘G’ word

Want to go green? Tell your contractor during your first meeting.

“You have to do it first,” says Holmes. “You’re not going to find too many people who say ‘I’m a green freak.'”

But what it comes down to is “the more friendly for the earth, the more friendly for you and your family,” he says. This is where doing some research ahead of time can pay off. What are the green or greener options for the job you’re planning?

The more you arm yourself, says Holmes, the better chance it is that you are going to find the right contractor for you.

Read more: 7 Tips for Hiring the Best Contractor at Bankrate.com