Abstract
Aluminum compounds, especially complexes of alcohols, are known as additional crosslinkers for air-drying alkyd paints. Particularly, the drying behavior of high-solids alkyd systems applied under adverse conditions may be improved distinctly. Besides the ether- and peroxy-crosslinks resulting from oxidative drying, coordinative crosslinking occurs. However, exterior weathering of paint films containing Al-complexes frequently results in severe embrittlement. In order to cope with these problems, drying and aging of alkyds and Al-complexes were investigated. All ligands in the complex appeared to get lost during drying, a probable cause of poor weathering performance. Using specially developed alkyd paints for Al-compounds, possible ways of controlling embrittlement are discussed.
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Muizebelt, W.J., Hubert, J.C., Venderbosch, R.A.M. et al. Aluminum compounds as additional crosslinkers for air-drying high-solids alkyd paints. Journal of Coatings Technology 70, 53–59 (1998). https://doi.org/10.1007/BF02720515
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DOI: https://doi.org/10.1007/BF02720515