Concrete Polishing – Polished concrete has emerged as one of the most sought after finishes for commercial and residential use. Originally, the process included using high performance grinding machines with a series of blades starting with course grinders followed by fine polishing and honing blades.
The procedure started out as 25, 50, 75 and 100 grit then moved to polishing with 200 and 400. Next, the polishing is followed by adding a liquid densifier to harden the surface. This hardening process reduces porosity increasing polishable surface area. Then, we use 800, 1,500 and even 3,000 grit.
New products and techniques include liquid sealers and floor buffing.
However, not all floors are candidates for a typical polish. Frequently, old concrete can have blemishes, cracks or soft/hard surfaces.
In some buildings, floors were poured with different batches resulting in inconsistent appearances.
For some uses, polished concrete is an outstanding option although frequently other options need to be considered.
Grind and Seal Concrete Floors – This is a polished concrete floor, but rather than proceeding with each step outlined above, the process stops at 100 grit followed with application of sealers. The appearance is more industrial than a glossy decorative polished surface, but for many uses this is an ideal solution.
Self Leveling Underlayments – If your floor is uneven, has severe cracks with a wear surface of carpet, tile or hardwood, a self leveling concrete can be applied at ¼ – ½ inch thick.
Self Leveling Overlayments – New products, equipment and techniques are available to create a decorative appearance without the additional cost of other flooring materials. We can even apply metallic epoxies or thin microtoppings that are integrally colored and stained and sealed.
Microtoppings – These are thin versions of self leveling systems. They are applied in thin coatings with integral color stains and sealed.
Moisture Mitigation for New Concrete – New concrete will dry in a day but traps moisture in microscopic capillaries. Moisture vapor is squeezed out as the concrete cures. This process can take 2 years. Unfortunately, the vapor can delaminate tile or create mildew in carpet.
Moisture mitigation systems enable us to cap the concrete followed with a self leveling underlayment. Warranty systems are available.
Epoxies are applied to steel and concrete. Some are even applied to decking on aircraft carriers, which must withstand harsh elements and the sudden heat from fighter jets propulsion.
Other epoxies must be flexible for application over wood flooring.
Contact us to discuss the best system for your use.
Oertel Engels in Ellicott City Maryland
We started as a concrete company over 40 years ago serving residential customers, home builders and commercial users in Virginia and Washington DC.