Product features

  • Formulated for all R-134 auto air-con systems
  • Helps eliminate harmful moisture
  • Repairs A/C leaks

Product Description

Super Seal AC Leak Sealer 40 helps repair minor metal and rubber leaks in R-134A auto air-con systems. The formula contains chemicals that are activated by moisture to form a patch over the leak as the refrigerant passes through.

  • Repairs metal leaks in the evaporator, condenser, compressor, accumulator and receiver/dryer
  • Seals rubber leaks in the O-ring, gasket and hoses
  • Vacuum packed, does not contain R-134A gas


Not for use in hybrid/electric vehicles with non-belt driven (electric driven) compressor. For R-134A air conditioning systems only.

Usage Directions

  1. Start engine and set the air conditioner to maximum cooling with system on re-circulate. Allow to run for 3 minutes. Ensure the air conditioner’s compressor is running and clutch is engaging.
  2. Turn air conditioner & engine off.
  3. Turn the valve handle of the recharge hose counter-clockwise until the piercing stem is in the up position. Caution: do not add A/C PRO® Super Seal through a manifold gauge & hose set. Use only enclosed recharge hose.
  4. Carefully screw the top of the Super Seal can onto the end of the recharge hose with the valve hand.
  5. Locate vehicle air conditioner low-side service port and remove protective dust cap. The low-side port is located on larger diameter aluminium tubing, between the evaporator and compressor. For further help use the port locator on this website for help finding the low-side port.
  6. With air conditioner switched off and whilst wearing goggles & cloth-lined gloves, pull back sleeve on coupler and attach by pressing onto low-side port. Coupler will only fit low-side port – do not force. Make sure fitting is tight. DO NOT ATTEMPT TO CONNECT TO THE HIGH-SIDE PORT AS THE PRESSURE MAY CAUSE THE CAN TO BURST, RESULTING IN SERIOUS INJURY.
  7. Holding the can right side up, turn the valve handle on the recharge hose clockwise until the piercing stem has punctured the Super Seal Can
  8. Turn the valve handle counter-clockwise, until you hear the refrigerant moving from the car air conditioning system into the Super Seal Can.
  9. Wait 10 seconds and turn valve handle clockwise to close valve.
  10. Do not remove the can, but shake the can to allow refrigerant to mix with A/C PRO® Super Seal.
  11. Start engine and set air conditioning to maximum cooling with system on re-circulate.
  12. Holding the can in an upside-down position and above the service port, turn the valve counter-clockwise. Shake lightly until can is empty.
  13. Disconnect the recharge hose from the low-side service port. Ensuring there is no residue in the can, disconnect the can from the recharge hose. Turn the valve handle on the recharge hose until the pushing stem is in the up position. Discard can and hose in accordance with national regulations.
  14. To prevent A/C PRO® Super Seal from sealing the service port, immediately flush the charging port with A/C PRO® R-134A recharge product.
  15. Allow the air conditioning system to run for 15 minutes to let the Super Seal and refrigerant circulate.


  • AC leak seal helps to repair minor metal and rubber leaks in your car’s A/C system. The solution works to form a patch over the leak as the refrigerant passes through.

  • AC Super Seal lasts around 10 years and helps to protect the system from minor leaks.

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