BioShield Hard Oil #9 oil is a high-solids primer that excels at sealing cork flooring, dry and absorbent woods, and large surfaces such as floors and architectural woodwork. It is also our recommendation for sealing beams, wooden boats, and masonry such as stone, slate, and brick. 

BioShield Hard Oil #5 oil is a high-solids primer that excels at sealing cork flooring, dry and absorbent woods, and large surfaces such as floors and architectural woodwork.