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Understanding the key components that cause osmotic blisters is essential to not only applying the proper concrete floor coating, but potentially walking away from a possible high-risk floor. Resinous floor coatings are organic coatings that have limitations. Coating failures are typically linked to moisture in the concrete slab. This can be a problem for resinous floor coatings that aren't moisture tolerant.
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Specifying polished concrete floors can reduce a project’s material- and energy consumption in both new construction and remodels. As a high-performance, low maintenance floor, it is sustainable throughout its lifecycle. The only gap in its green profile has been the chemistry used to densify concrete in preparation for polishing. New, less caustic colloidal silica-based densifiers solve this problem, as they are safer for workers and less burdensome on the environment. Their use can also help contain costs.
Dimensional Profiling is a new prospective of applying sustainable non-slip characteristics to the surface of polymeric flooring and coating systems. Over the last three decades, it has been commonplace in the industry to provide a single nonslip media profile.
Moisture testing of concrete substrates has become a common practice in the floor coatings industry. Even though most contractors and field technicians are capable of performing the testing, they don’t really understand what the data they are collecting means, other than the acceptance criteria established by the product manufacturer of the coating or flooring being installed.
The importance of moisture testing of concrete floors cannot be stressed enough. Moisture is a leading cause of coatings failures on concrete floors. There are many ways moisture can affect floor coatings on concrete. Moisture testing alone is not sufficient enough at detecting all of the potential problems. Inspecting a building prior to performing any tests will provide a much clearer picture of the potential problems moisture in both liquid and vapor form can pose.
The moisture vapor emission rate (MVER) of concrete floors affects the selection of flooring materials for both new construction and remodel projects. The MVER is determined by exposing a 20” x 20” test area to calcium chloride for 60 to 72 hours.
On October 4, 2011, SSPC held the inaugural meeting of a new committee developed to address commercial coatings and flooring issues. The committee is called, “C3 Commercial Coating Committee (Architectural, Commercial, Institutional).” The committee agreed to address five topic areas: field cleaning and painting, paint materials, flooring, thin film air/vapor barriers on Concrete Masonry Unit (CMU), and commercial contractor certification. Key concerns in each of the topic areas were identified which resulted in the following scopes and work activities.
A new and versatile waterborne solid epoxy resin dispersion with good flexibility and improved shear stability is presented. When this binder is used, high performance metal primers can be formulated without the use of anti-corrosion pigments. This is highly desirable since the toxicological effects of zinc phosphate and other zinc-based salts are causing environmental concerns.
Polymeric interior and exterior marine decking systems provide both decorative and functional protection for ships, aircraft carriers, and offshore drilling platforms. Interior decking systems includes coatings, color flake and quartz systems, terrazzo, and underlayments, which are applied in areas such as galleys, living quarters, and wet spaces.
Polyurethane technologies have demonstrated their applications in a variety of seamless polymer flooring systems. Aliphatic polyurethanes are widely used as topcoats since they provide combinations of good color stability, gloss retention, abrasion resistance, chemical resistance, and weathering resistance. Recent development in polyaspartic chemistry offers more options in coating thickness, curing temperatures, and solids content.
What is SSPC QP8 certification? Who benefits? What is entailed in obtaining certification and what are some of the key requirements? Where do we see QP8's place in the resinous flooring industry in years to come?
Explains why concrete floors need protective treatments, identifies two main categories of protective treatments, and recommends appropriate protective treatments based on purposes and finishes of concrete floors.