Coating materials are used for surface finishing of buildings products and have a protective, appearance and economic function. Silicone materials are used as one of the best, which have excellent physical - mechanical properties. Due to the high price of silicone, in practice they are commonly used in mixtures. Silicone-acrylate coat mixtures are often produced in the industry, which are both high-quality due to the silicone content and cheaper due to the presence of acrylate coatings. The aim of this work is to propose a model that could be used to determine the amount of silicone and the amount of acrylate in coat mixtures. This model is based on the exact identification of the acrylate spectra that are investigated in this article.