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AC Stop Leak / Aerosol | FAQ


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How does it work?

Red Angel is inert until it mixes with R-134a. Red Angel is activated by air flow at the site of the leak - forming a chemical weld and repairing the system.

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How large of a leak does it repair?

Red Angel will seal leaks in A/C systems that can hold 5 inches of vacuum for 25 minutes or 15 inches of vacuum for 5 minutes. A system that won’t hold 5 inches of vacuum on the low side for 25 minutes has a leak that is too large to be sealed, and will need a hard part repair.

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How much do I use?

One can (4.5oz.) is used for A/C systems up to a 5 lb. capacity. When adding Red Angel to an evacuated system, substitute Red Angel for 2oz. of oil. When a vehicle has a slow leak & maintains a partial charge, add Red Angel along with the necessary amount of R-134a (see service manual).

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What happens if I recycle the refrigerant?

Red Angel is removed from the A/C system with the refrigerant. It is then separated from the refrigerant with the reclaimed oil. It will not clog or damage a recovery unit.

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Will it clog the driers or any other a/c components?

No. Red Angel will not clog or effect any other components. During the injection process, drying agents prevent any sealing activity. Red Angel will not clog or damage the recovery unit, Red Angel is removed with the reclaimed oil.

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Does it seal evaporator leaks?

Yes! It also seals leaks in connection hoses, gaskets, o-rings & condensers.

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How long will it stay in the system?

If there are no leaks in the system, Red Angel remains as a liquid lubricant in the system. It can stay in the system until the oil is reclaimed.

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