In order to obtain precise information on the long-term behavior of coatings, Sikkens employs a complex and extremely practical test method which provides data on coatings at the building and climate level. This diamond-shaped octagonal device is designed like a compass. Coated wooden panels are arranged there at inclinations of 0 °, 45 ° and 90 ° in eight different directions (north, northeast, east, southeast, south, southwest, west, northwest).
Gloss retention according to ISO 2813, chalking according to ISO 4628, cracking according to ISO 4628 and discoloration according to ISO 7724 are thus regularly checked and evaluated.
These results can be used to determine the intervals between applications, taking into account constructive wood preservation measures.