The world's best penetrant. KB 88 is formulated to attack and quickly release rusted and corroded nuts, bolts, hinges and other frozen components. With extremely high solvency, low surface tension and special additives, KB 88 enhances penetration, lubrication and corrosion attack. - This unique penetrant outperforms the competition in independent lab tests. KB 88 penetrates faster and deeper than most other similar products in the market place.