气候和阳光辐照是损害涂料、塑料、油墨及其他高分子材料的主要原因,这种损害包括失光、褪色、黄变、开裂、脱皮、脆化、强度降低及分层。即使是室内的光及通过玻璃窗透射的太阳光也都会使一些材料老化,比如引起颜料、染料等褪色或变色。对许多制造商而言,产品的耐老化和耐光性 Climate and sun exposure are the main causes of damage to coatings, plastics, inks and other polymeric materials. Such damage includes loss of light, fading, yellowing, cracking, peeling, embrittlement, reduced strength and delamination. Even indoor light and sunlight transmitted through glass windows can age some materials, causing pigments such as dyes to fade or discolor. For many manufacturers, the product is resistant to aging and to light