The process of applying a penetrating finish to lumber that has undergone chemical preservation treatment to resist rot, decay, and insect infestation involves specific techniques. This finishing procedure alters the appearance of the wood, potentially adding color, enhancing grain, and providing an additional layer of protection against the elements. For example, one might apply a semi-transparent coating to a newly constructed deck to both protect the wood from UV damage and to achieve a desired aesthetic.
Properly executed, this surface treatment can significantly extend the lifespan of outdoor structures, enhance their visual appeal, and improve their resistance to moisture absorption. Historically, this practice has become increasingly important as environmental awareness has grown, driving demand for lumber that is both durable and aesthetically pleasing. This process allows consumers to customize the appearance of their projects without compromising the protective qualities of the original treatment.