The impact of a light stabilizer in a coating applied on a wood substrate is twofold. Firstly, without light stabilization, the coating will quite rapidly undergo cracking and subsequent blistering. The coating will delaminate completely from the wood substrate, leading to severe degradation of the wood now unprotected. Secondly, the light stabilizer present in the coating also has the ability to quite significantly slow the color change of the wood itself (darkening or lightening depending of the type of wood). Hence, to ensure extended durability, longer service life and keep the aesthetics of wood finishes for exterior applications, it is necessary to protect them from adverse factors such as UV radiation, humidity and climate changes, with the adequate light stabilizer solution.