Fast loosening of extremely rusty thread connections.Product properties:Penetrates rust, dissolves ground-in dirt, oil, etc. efficiently.Really excellent penetration.Works fast thanks to extreme down cooling to -40°C.Fast penetration of active agents via microscopical fissures in corrosion layers.Lubricity on account of PTFE contents (Teflon)Silicone-free and acid-free.Does not solidify.