Errecom Extreme Ultra | A/C Leak Stop for Vehicle A/C Systems |

Errecom Extreme Ultra is a specialized sealant designed to resolve small refrigerant leaks in automotive air conditioning and refrigeration units. It is formulated for vehicle owners and technicians who need to fix minor system losses or protect their air conditioning against future leaks.

The standout characteristic of this formula is that it is completely polymer-free. Because it does not react with oxygen or ambient moisture, it will not form solid clogs inside your system. This keeps critical and delicate hardware safe, including capillary tubes, thermal expansion valves (TXVs and TEVs), and standard Schrader valves.

Application relies on a patented reusable system (US patent 11002470). Once you have the setup, you only need to purchase individual Extreme Ultra replacement cartridges for future jobs, cutting down on equipment waste. It is developed in Italy and backed by OEM approval, serving as both a repair fluid and preventative upkeep.

As a trade-off, this product is intended strictly for small leaks rather than major component ruptures. The manufacturer specifies that you must perform a 5-minute vacuum test beforehand to verify whether the leak is small enough for this treatment to work effectively.

Verdict: Errecom Extreme Ultra is an excellent choice for drivers and technicians wanting a safe, polymer-free solution for minor vehicle A/C leaks. If your system passes the required vacuum check, it offers a reliable fix that protects delicate valves from clogs.

A great fit if you:

• Need to seal minor refrigerant leaks in a vehicle A/C setup.
• Want preventative maintenance to avoid future A/C refrigerant loss.
• Prefer a polymer-free sealant that will not clog expansion or Schrader valves.
• Plan to reuse the delivery hardware with future refill cartridges.

Consider something else if you:

• Have large structural leaks that fail a 5-minute vacuum test.
• Need a complete kit and do not want a system built around cartridge refills.

How do I know if this sealant will work on my system?
You should perform a 5-minute vacuum test on your system prior to use to ensure the leak is small enough to be sealed by Extreme Ultra.

Will this formula clog my air conditioning valves?
No. It features a polymer-free formula that does not react with moisture or oxygen, preventing blockages in components like capillary tubes, Schrader valves, and expansion valves.

Can the applicator system be used more than once?
Yes. The patented system is reusable, allowing you to buy only the Extreme Ultra refill cartridges for future applications.