The product has been formulated to protect new wooden structures, pending subsequent finishing treatments (generally in the winter season). It prevents the graying of wood, effectively protects against the formation of mold and fungus and from insect infestation in the period in which the wood is left without finishes. It does not alter its natural color. Characterized by an excellent penetration capacity, it allows the application of oils and any other finishing. Perfect primer to be used as a pre-treatment before exterior woodstain products, lacquers or oils. Thanks to the considerable content of active ingredients and the high penetration capacity, the material guarantees superior protection and extends the duration of the coating over time. External use.