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Polyurethane coating systems on parking structures are designed to prevent leaks, protect the concrete from deterioration, and prevent corrosion in the reinforcing steel
Polyurethane coating systems on parking structures are designed to prevent leaks, protect the concrete from deterioration, and prevent corrosion in the reinforcing steel. Concrete is brittle, porous, and alkaline, causing it to crack, absorb moisture, and enable corrosion to deteriorate the reinforcing steel. The coating forms a seamless membrane “skin” that bridges hairline cracks, seals the concrete surface, and prevents ingress of moisture and chloride that causes leaks, deterioration and corrosion.
New high-solids compounds for two-component (2K) topcoats based on polyurethane, polyurea and polysiloxane binders are examined with respect to their competitive potential in Europe. Against the backdrop of EU-wide VOC legislation, the relevant market for OEM topcoats applied in stationary facilities is currently estimated at 20,000 t with a material value of a good EUR 100 million.
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Cracks in a concrete substrate pose a challenge for coatings. Cracks that are not properly identified and addressed can lead to premature failure of the coating. This paper will discuss the forces that cause cracking in concrete structures, as well as crack types and repair techniques.
This presentation will high light the new ultra-high solids tank lining products and discuss the equipment necessary to properly apply them, giving owners the ability to return their tank to service in a very short time frame.