A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polyurea spray applied systems for concrete protection
Polyurea spray coatings technology is a recent one of the new development of the last twenty years in the polyurethanes coatings industry. The technology combines fast curing, even at very low temperatures, and water insensitivity with exceptional mechanical properties, chemical resistance and durability. The development of new raw materials and improved spray equipment has made it possible to overcome the initial problems associated with this technology such as substrate wetting, intercoat adhesion and surface finish quality. The latest development programs focus an the extension of the application fields through the introduction of MDI-prepolymers, combining low viscosity with low NCO-content, resulting in slower reactivity and/or higher flexibility. Alternatively, prepolymers with higher NCO-content produce coatings with superior hardness. This paper details the technology and provides an update an the latest developments in the field of raw materials, formulation and performance of polyurea spray coatings in construction applications.
Polyurea spray applied systems for concrete protection
Polyurea spray coatings technology is a recent one of the new development of the last twenty years in the polyurethanes coatings industry. The technology combines fast curing, even at very low temperatures, and water insensitivity with exceptional mechanical properties, chemical resistance and durability. The development of new raw materials and improved spray equipment has made it possible to overcome the initial problems associated with this technology such as substrate wetting, intercoat adhesion and surface finish quality. The latest development programs focus an the extension of the application fields through the introduction of MDI-prepolymers, combining low viscosity with low NCO-content, resulting in slower reactivity and/or higher flexibility. Alternatively, prepolymers with higher NCO-content produce coatings with superior hardness. This paper details the technology and provides an update an the latest developments in the field of raw materials, formulation and performance of polyurea spray coatings in construction applications.
Polyurea spray applied systems for concrete protection
Broekaert, M. (author)
2003
19 Seiten, 7 Bilder, 6 Tabellen, 16 Quellen
Conference paper
English
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