Lubricants and penetrants are a category of specialized substances used to enhance the performance and maintenance of mechanical systems. Lubricants are designed to reduce friction between moving parts, providing smooth operation and minimizing wear and tear. They come in various forms such as oils, greases, and solid lubricants, tailored for specific applications and operating conditions. Penetrants, on the other hand, are formulated to penetrate and loosen rust, corrosion, and stuck components. They have low viscosity and high surface tension, allowing them to seep into tight spaces and displace contaminants. Lubricants and penetrants play a crucial role in industries such as automotive, manufacturing, and maintenance, ensuring optimal functioning, longevity, and reliability of equipment and machinery.