Improper epoxy flooring surface preparation can lead to delamination and other problems with your epoxy flooring. Do you know enough to tell whether your installer is conditioning and installing your floor correctly?
One of our frustrations as a professional epoxy flooring installation company, is seeing all the hack handymen, fly-by-night “epoxy” companies and other con men posing as epoxy floor professionals. Many homeowners get duped by the low prices, thinking they are getting a great deal. After all, most epoxy floors look similar when finished. It isn’t till later, when the low quality floors start to delaminate that the differences become apparent.
Some companies may even offer lengthy warranties to hide the low quality materials and workmanship. Offering a 30 year warranty doesn’t matter if the company isn’t around in 2 or 3 years.
One of the most important things that some companies may cut corners on is the surface preparation of the concrete. There are only three methods of preparing the concrete for epoxy installation that will properly condition the floor. We want to educate homeowners on the proper methods, so they are less likely to be fooled by shoddy work.
The Three Methods of Epoxy Flooring Surface Preparation
Shot Blasting Concrete Flooring
Shot blasting is a one-step approach for removing, cleaning up and profiling surfaces in preparation for coverings and overlays. Not only do shot blasting systems produce a roughened texture that enhances adhesion of decorative garnishes, they also leave surface areas immediately ready and dry for re-coating or resurfacing.
Many shot blasters use a wheel with blades similar to paddles, that launch steel shot at the surface area at a high speed utilizing centrifugal force, fracturing off the surface layer of the concrete along with any dirt, finishes, paint or other contaminants.
The depth of surface area removal is managed by a mix of factors, consisting of the size of the shot and concentration utilized, the rate the machine is moved across the floor, shot impact force and whether there is already a coating on the floor that needs to be removed. One advantage of shot blasting is that it produces little dust or debris, making the technique an excellent choice for floors in sensitive areas, such as cooking facilities or making plants. Shot blasting is one of the old techniques earlier utilized to level a flooring and to prepare a concrete floor for further treatment. The heat produced from shot blasting can make the covering sticky.
Concrete Grinding Floor Surface Preparation
Concrete grinding is a phrase that broadly references the work done to a concrete surface to remove layers of residue or imperfections. Concrete grinding is generally used in the removal of flooring finishes and/or the flooring itself, as well as glue left from carpet or tile removal. It can also remove residual grout from stone tile floors.
Concrete floor grinders use powerful rotating diamond-coated discs to carry out a wide variety of jobs, from concrete texturing to clean and open the pores of the surface, to elimination of paints, glues and other finishes. They usually leave behind a smoother profile than scarifying, scraping or shot blasting, and when used on difficult, dense concrete surfaces they have more of a polishing effect rather than creating abrasions.Read More