BlueDevil Products Red Angel A/C Stop Leak - 2 oz concentrated sealant, R-12/R-134a safe

BlueDevil Red Angel 49496 A/C Stop Leak is a 2-ounce formula that seals common leaks in automotive air-conditioning systems and conditions components without clogging the system.

Designed for technicians and car owners who need a compact, effective repair option, this concentrated stop-leak flows to the leak point, reacts there, and creates a permanent chemical bond that seals holes in evaporators, condensers, hoses, gaskets, and O-rings. The product is compatible with R-12 and R-134a systems and contains no solid particles that could obstruct lines or recovery equipment. After sealing, the formula continues to lubricate internal parts to help maintain system integrity.

How does Red Angel find and seal AC leaks?

Red Angel is engineered to travel with refrigerant to the leak site and activate only where it encounters escaping gas and air, forming a durable chemical weld that closes the opening. It avoids forming solid particulates so it won’t block tubing, fittings, or recovery units.

• Activates at leak points where refrigerant and ambient air meet
• Forms a chemical bond rather than depositing solids
• Compatible with both R-12 and R-134a refrigerants
• Doesn’t harm recovery or recycling equipment

Will this product clog my AC system or recovery machine?

No — the formula contains no solid or particulate matter that would create blockages. It remains in a fluid state until it reacts at the leak, so it circulates cleanly through compressors, lines, and recovery equipment during service.

• No solids that can obstruct expansion valves or orifices
• Safe for standard recovery and recycling tools when used as directed
• Flows with refrigerant for full-system coverage prior to activation

How long does the seal last and what additional benefits does it provide?

The chemical bond formed at the leak is designed to be permanent for typical automotive use. After sealing, the product continues to condition and lubricate internal components, helping to reduce wear and better protect seals and moving parts.

• Permanent chemical weld-style repair when properly applied
• Continues to lubricate hoses, gaskets, and O-rings after sealing
• Useful for both reactive repair and preventative maintenance

How do I use the 2-ounce bottle — is it suitable for DIY or shop use?

The compact 2-ounce size is convenient for both quick shop repairs and DIY applications on passenger vehicles. Follow manufacturer instructions for charging and system pressure; professional service is recommended for complex issues or large leaks.

• Small bottle fits toolboxes and service carts for on-the-spot repairs
• Follow system-specific charging and safety steps for best results
• Best for small to moderate leaks and preventative treatments

Who is this for: BlueDevil Red Angel 49496 is aimed at automotive technicians, fleet maintenance teams, and hands-on vehicle owners who need a compact, effective AC leak repair that won’t clog system components. It’s a practical choice for emergency fixes, warranty-protection of replaced parts, and preventative maintenance on R-12 or R-134a systems when applied according to instructions.