Bar's Leaks Professional DiFM Cooling System Treatment 5-gram tablets are the perfect product to use any time servicing the cooling system, including parts replacement and flush & fills. Inhibits the formation of rust and scale, keeps the system clean, neutralizes pH imbalance, controls electrolysis, lubricates and seals internal, external and coolant-to-oil leaks.

Compatible with ALL types and brands of antifreeze including conventional green or blue (Silicate-Based) and extended life red/orange or yellow (OAT/HOAT) coolant. Also works in systems containing only water. When used in water alone, it is also recommended to use a cooling system anti-rust and water pump lube.

Bar's Leaks Professional DiFM A/C Stop Leak & Sealer will seal most minor air conditioning leaks. The product works on the principle of the venturi effect and flow, which basically means when there is a small leak in the system, refrigerant and some of the stop leak material escape at an accelerated speed. As the liquids escape the pressure below that point actually drops and the stop leak coagulates and forms a non-hardening flexible seal at the leak site. This happens because the vapor density of the stop leak is over two times that of the refrigerant. Since the repair stays flexible it can expand and contract with temperature changes.

The stop leak also acts as an excellent lubricant for all moving parts inside the air conditioning system.