WoodLife CopperCoat Green Wood Preservative is a multi-purpose, EPA-registered, insecticidal wood preservative designed to protect exterior untreated or pressure-treated wood in below ground, ground contact, fresh water contact or above ground installations. CopperCoat prevents attack from termites and other wood-boring insects while protecting against rot and decay. Its anti-wicking property resists moisture absorption through end cuts for greater control of dimensional warping, splitting and end-checking. Plus, its paintable/stainable formula makes this product an excellent preservative primer for wood roofing, millwork and trim.