A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Radiation curing paints for professional painters: today's reality?
Radiation-cured paints, based on an acrylic urethane emulsion, an aliphatic polyester polyurethane dispersion, and an acrylic dispersion, have been developed for professional painters that can be cured at low temperatures and high relative humidity along with the corresponding curing equipment that consists of IR and UV lamps. The curing behavior of some concept formulations in different colours and under difficult climatic conditions were investigated and their early performance was compared with a market reference product. Tested properties included curing conditions and surface temperatures, film formation at low temperatures and high humidity, blocking resistance, overcoatability, outdoor durability, and water uptake. The coloured paints could be dried with a combination of IR and UV light, whereby yellow paints were the most critical. Initial tests under practical conditions showed good preliminary results of the concept formulation based on the acrylic urethane emulsion used to the drying and curing equipment. A professional painter evaluated the concept formulation as 'good' for hiding power, flow, leveling, sandability, adhesion, fast overcoatability, and water resistance. The hand-held equipment was evaluated as being too heavy. Therefore, the development of lighter alternatives is necessary.
Radiation curing paints for professional painters: today's reality?
Radiation-cured paints, based on an acrylic urethane emulsion, an aliphatic polyester polyurethane dispersion, and an acrylic dispersion, have been developed for professional painters that can be cured at low temperatures and high relative humidity along with the corresponding curing equipment that consists of IR and UV lamps. The curing behavior of some concept formulations in different colours and under difficult climatic conditions were investigated and their early performance was compared with a market reference product. Tested properties included curing conditions and surface temperatures, film formation at low temperatures and high humidity, blocking resistance, overcoatability, outdoor durability, and water uptake. The coloured paints could be dried with a combination of IR and UV light, whereby yellow paints were the most critical. Initial tests under practical conditions showed good preliminary results of the concept formulation based on the acrylic urethane emulsion used to the drying and curing equipment. A professional painter evaluated the concept formulation as 'good' for hiding power, flow, leveling, sandability, adhesion, fast overcoatability, and water resistance. The hand-held equipment was evaluated as being too heavy. Therefore, the development of lighter alternatives is necessary.
Radiation curing paints for professional painters: today's reality?
Nienhuis, Johan (author) / Rozendom, Esther (author)
2004
17 Seiten, 10 Bilder, 5 Tabellen, 29 Quellen
Conference paper
English
Acrylharz , Polyurethan , Holzschutzmittel , Strahlungshärten , Ultraviolettbestrahlung , Infrarotbestrahlung , Warmlufttrocknen , Routinebetrieb , Wasserlack , Aushärten (Polymer) , Dauerhaftigkeit , Klimabeständigkeit , Deckanstrich , Deckvermögen , Adhäsion , Haftfestigkeit , filmbildende Eigenschaft , Wasseraufnahme , Hydrolysenbeständigkeit , Luftfeuchte
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