Below are few of the most frequently asked questions.
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What is the difference between Polishing and Acid Stain and Seal?
Concrete floors that are acid stained or dyed, but not polished, require much more maintenance and ongoing costs. If a floor is acid stained or dyed without polishing, a sealer must be used to protect the concrete. Once this sealer wears off (6 months – 1 year), it must be quickly reapplied to avoid damage to the floor or the finish. If a sealer is not used on these unpolished floors, a rigorous floor maintenance schedule must be followed. This would include stripping and waxing the floor multiple times a year, resulting in higher ongoing labor and materials costs as well as increased down time. On the other hand, when a floor is polished and dyed, a chemical densifier is added to the concrete to increase strength and fill any remaining pores. The is no coating or sealer used in this process, so there is nothing to reapply. This eliminates the need for any ongoing maintenance or reapplication costs. All applications should require nothing more than normal cleaning for at least 5-10 years.
Isn’t a concrete floor very dark?
Polishing can give concrete a higher degree of shine and reflectivity, similar to polished marble or granite, than can be achieved with a high-gloss coating. This means greater visibility and fewer overhead lights (decreased maintenance costs) required in buildings utilizing polished concrete floors. High light reflectivity of polished concrete is an important benefit for office buildings, hotels, restaurants, and other public facilities that want to project a bright, clean, professional image. Polished concrete utilizes low Volatile Organic Compounds (VOCs) which makes it an environ-mentally friendly surface. There are no coatings applied, such as epoxies, urethanes, or waxes. There is no slurry or hazardous waste. Polished concrete floor systems are also recognized by the United States Green Building Council and LEED certification as an environmentally friendly flooring option. Specifically, the polished concrete floor advantages for LEEDs relates to lower use of interior lights, use of existing floor system and low VOC use.
Isn’t it more expensive than tile or VCT?
Based on a survey conducted by the National Terrazzo and Mosaic Association, Polished Concrete is slightly higher than vinyl, but the maintenance and replacements costs over 20 years are greatly less. Polished concrete by Jenco Companies will cost approximately $4.00 to $6.00 depending on sheen.
Why should I polish my concrete instead of apply epoxy?
When epoxies or coatings are applied to concrete floors, the final results can be less than impressive. The reasons for these results can vary depending on the situation. The problems can arise prior to installation, when the floors are not properly prepared. For the new coatings to adhere, the floors must be absolutely clean and free of old coatings. Any imperfections in the old floor must also be ground flat. If not, these imperfections can still be seen even after the installation is complete. In addition to these problems, many coatings can emit dangerous fumes during installation that can harm people or the environment. If the floors are properly prepared and the coating is correctly applied, the initial finish can appear quite nice … but you must keep traffic off the floor for 1-7 days while it cures. Once the floor is fully cured, you have a whole new set of possible problems to be concerned with.
These problems can vary depending on which type of coating is used. The problems can include:
· Bubbling due to water being trapped beneath the coating
· Cracking or peeling
· Chipping from dropped tools
· Marking or removal by hot tires
· Burns from welding or grinding
· Discoloration due to age or UV rays
· High reapplications cost when any of these problems occur
On the other hand, when a floor is polished and dyed, a chemical densifier is added to the concrete to increase strength and fill any remaining pores. There is not coating or sealer used in the process, so there is nothing to reapply. This eliminates the need for any ongoing maintenance or reapplication costs. All applications should require nothing more than normal cleaning for at least 5-10 years.