AT-205 added to leaking systemAT-205 Re-Seal is added to any leaking engine, transmission, power steering system, differential or hydraulic system (except for brakes) to condition rubber seals/gaskets and stop leaks. Simply pour it in as you would be filling it with oil or fluid. | The formulation blends with the oilThe additive blends with oil in the system and is circulated throughout during operation, treating and conditioning rubber seals and gaskets. | Conditions and rejuvenates sealsAT-205 is a plasticizer, a type of chemical used in rubber manufacturing to set hardness and flexibility. As a seal or gasket gets older it can dry out, harden and wear - treating it with AT-205 will rejuvenate it, restoring it's flexibility and sealing properties. | Most leaks resealed within 5 hoursAs long as the seal or gasket is not severely damaged or torn, the leak is resealed after a total of 5 hours of driving - saving time and money from costly repairs. |