Since the mid-1970s, polyurethane coatings (topcoats) have been the key coatings for industrial coating and marine coatings protection corrosion protection systems. Until now, polyurethane coatings have been advancing rapidly in this field. Through the efforts of global coating technicians, polyurethane coatings can fully meet the coating formulation system with low VOC content, enhance the durability of coatings and effectively reduce coating production costs. The outstanding marking of polyurethane topcoats in terms of weatherability has also led to an ever-expanding range of applications. Polyurethane coatings can now be seen in protective coating systems such as outdoor sports equipment, water storage devices, and bridge construction.
However, many paint industry professionals have questions about how the mainstream two-component polyurethane coatings can be subjected to the harshest environmental conditions, and how does polyurethane design meet environmental weathering requirements? The technical experts Edward P. Squiller and Kurt Best from Bayer MaterialScience have long been dedicated to the technical research and development of polyurethane topcoat coating systems, especially in the field of weatherable protective polyurethane coatings, developed by two people. Can fully meet the SSPC highest grade polyurethane application requirements No. 36. Two people's technical papers on the field "Formula Design of Weather Resistant Polyurethane Protective Coatings" have been completed. According to SpecialChem, two experts from Bayer will use this paper as a basis for the upcoming 2008 Paint and Coatings Expo. Discuss with industry experts.
We know that in the coating formulation system, many factors will affect the anti-corrosion effect of the topcoat coating, of course, including the thickness of the coating. These influencing factors include the general parameters of isocyanate and the choice of film-forming resin. It is important to know that isocyanate and resin are the key factors that determine the weatherability of coatings.
In the two Bayer experts' papers, the authors compared the weathering performance of different formulations of aliphatic polyurethanes as topcoat resins, and according to experiments, the traditional aliphatic polyurethanes have better performance than aromatic polyurethanes. Outdoor weatherability, and as a topcoat with good gloss and color durability.
Through the experimental research, the various polyurethane topcoats developed by the two experts have successfully passed SSPC Paint Spec. #36, the highest level application test condition of SSPC, in particular, the gloss and yellowing resistance of topcoats. “Studies on weatherability of topcoat topcoats are currently focused on a single raw material component,†Squiller said. He argued that the final test of the material should be conducted in a practical environment. “Of course, the determinants in the formulation come from The choice of polyurethane resin and isocyanate, but we must also consider the cost of materials and coating costs, whether to meet the cost of protective engineering."
However, many paint industry professionals have questions about how the mainstream two-component polyurethane coatings can be subjected to the harshest environmental conditions, and how does polyurethane design meet environmental weathering requirements? The technical experts Edward P. Squiller and Kurt Best from Bayer MaterialScience have long been dedicated to the technical research and development of polyurethane topcoat coating systems, especially in the field of weatherable protective polyurethane coatings, developed by two people. Can fully meet the SSPC highest grade polyurethane application requirements No. 36. Two people's technical papers on the field "Formula Design of Weather Resistant Polyurethane Protective Coatings" have been completed. According to SpecialChem, two experts from Bayer will use this paper as a basis for the upcoming 2008 Paint and Coatings Expo. Discuss with industry experts.
We know that in the coating formulation system, many factors will affect the anti-corrosion effect of the topcoat coating, of course, including the thickness of the coating. These influencing factors include the general parameters of isocyanate and the choice of film-forming resin. It is important to know that isocyanate and resin are the key factors that determine the weatherability of coatings.
In the two Bayer experts' papers, the authors compared the weathering performance of different formulations of aliphatic polyurethanes as topcoat resins, and according to experiments, the traditional aliphatic polyurethanes have better performance than aromatic polyurethanes. Outdoor weatherability, and as a topcoat with good gloss and color durability.
Through the experimental research, the various polyurethane topcoats developed by the two experts have successfully passed SSPC Paint Spec. #36, the highest level application test condition of SSPC, in particular, the gloss and yellowing resistance of topcoats. “Studies on weatherability of topcoat topcoats are currently focused on a single raw material component,†Squiller said. He argued that the final test of the material should be conducted in a practical environment. “Of course, the determinants in the formulation come from The choice of polyurethane resin and isocyanate, but we must also consider the cost of materials and coating costs, whether to meet the cost of protective engineering."
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