TY - JOUR TI - Research on the influence of colloidal silica addition on water vapour permeability of paint coating AU - Brachaczek, Wacław AU - Siemiński, Wojciech TI - Research on the influence of colloidal silica addition on water vapour permeability of paint coating AB - In the paper the influence of colloidal silica addition with different amounts of organic resin in facade paints formulations on the change of water vapour permeability of hardened coatings was researched. The results were obtained by means of experiments. To quantify the ability of paint to diffuse water vapour, Sdfactor, defined as equivalent to the thickness of non-rotating air layer, was used. For the quantitative determination of the relationship between water vapour permeability and the share of analyzed components in the formulation of paint a statistical model based on multiple regression was applied. Statistical analysis of the results showed that the effect of changes in the amount of colloidal silica in the formulation of paint on Sd value is small, compared to organic resin share changes. VL - 2014 IS - Budownictwo Zeszyt 5-B (19) 2014 PY - 2015 SN - 0011-4561 C1 - 2353-737X SP - 19 EP - 26 DO - 10.4467/2353737XCT.14.331.3642 UR - https://ejournals.eu/czasopismo/czasopismo-techniczne/artykul/research-on-the-influence-of-colloidal-silica-addition-on-water-vapour-permeability-of-paint-coating KW - colloidal silica KW - water vapour permeability KW - coating