BioBlend PO is an excellent penetrating oil and general purpose lubricant that is formulated from readily biodegradable renewable resource base stocks and additives. BioBlend PO has superior wetting ability and a high affinity for metal surfaces which offers excellent penetrating and loosening of frozen, rusted or stuck components. The â€œgreenâ€ solvents used are excellent for dissolving dirt, grease and removing debris, while leaving a light lubricating film which helps control corrosion. Since it contains natural and biodegradable ingredients, it is safer for the environment. As with any solvent-type product, care should be taken when using around certain plastics, foam rubbers, urethanes, and painted surfaces as they can be incompatible.