Valtti Plus Base protects wood against mold, blue stain and rot. Wood priming oils are used under all exterior paints and stains, except wood oils.
The active substances in Valtti Plus Base keep the whole painting process cleaner from surface mold. The priming oil also gives more water resistance and improves the durability of the whole painting process.
The product is slightly bluish. This makes it easier to see where the priming oil has been applied.