Support Colder Air
Reducing small refrigerant leaks can help the system hold its charge and maintain stronger cooling.
Seal Small A/C Leaks. Find the Rest with UV Dye.
Seal Small A/C Leaks. Find the Rest with UV Dye.
A/C Leak Stop + UV Dye
Seal Small A/C Leaks. Find the Rest with UV Dye.
Helps seal minor leaks from inside the system while fluorescent dye makes remaining leak points easier to locate.
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Regular price
$25.99
Regular price
$25.99
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$35.98
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Seal Small A/C Leaks. Find the Rest with UV Dye.
Regular price
$25.99
Regular price
$25.99
Sale price
$35.98
Unit price
per
🔦 UV dye helps reveal remaining leak points under a compatible UV lamp
Automotive A/C Leak Stop + UV Dye
Help Stop Small A/C Leaks—Then See What Is Still Leaking
A dual-action automotive A/C treatment designed to help seal minor leaks from inside the system while leaving a UV-visible trace for easier follow-up inspection.
- ✓Helps seal small leaks in suitable metal and rubber A/C components
- ✓UV dye helps pinpoint leaks that still require repair
- ✓A practical DIY step for slow refrigerant loss and weak cooling
Seal Minor Leaks
UV Leak Detection
Automotive A/C Use
2-in-1 Formula
Leak stop plus fluorescent dye
Inside-Out Action
Circulates through the A/C system
Clearer Diagnosis
UV glow highlights escape points
One Product · Two Jobs
Seal the Micro-Leak. Trace the Bigger Problem.
Slow refrigerant loss can gradually weaken cooling performance. This formula is designed to address minor seepage while the fluorescent dye gives you a visible clue if the system still needs mechanical repair.
Seal from the Inside
The formula circulates through the system to reach suitable leak-prone seals, hoses, and connections.
Find Remaining Leaks
Escaping fluorescent dye can glow under UV light, helping identify where further repair is needed.
Targets Common Leak Areas
Designed to Reach the Parts You Cannot Easily See
As the treatment circulates, it can travel through the same components where small automotive A/C leaks commonly develop.
O-Rings & Seals
Common aging points where slow seepage can begin.
Rubber Hoses
Helps address suitable small leaks in flexible lines.
Gaskets
Supports minor sealing around joined components.
Evaporator
Circulates through the hidden cabin-side heat exchanger.
Condenser
Reaches the front-mounted component exposed to road wear.
Metal Connections
Helps with small leaks around suitable fittings and joints.
How the Dual-Action Formula Works
Seal What It Can. Highlight What It Cannot.
The leak-stop portion is intended for small seepage points. The fluorescent dye continues circulating so a remaining leak can be found visually instead of guessed at.
Circulates
The treatment moves with the A/C refrigerant and lubricant through the closed system.
Reaches the Leak
It travels toward minor escape points in suitable hoses, seals, O-rings, and fittings.
Leaves a UV Trace
Escaping dye can fluoresce under a compatible UV lamp, showing where repair may still be needed.
Simple Installation Flow
Connect to the Low-Side Port, Then Let the System Circulate
Exact installation depends on the product version, applicator, and refrigerant type. Always follow the label included with the product.
Verify Compatibility
Confirm the vehicle refrigerant type and that the product or adapter matches the system.
Run A/C on MAX
Start the engine and set the air conditioner to maximum cooling so the system circulates.
Connect Low Side
Attach the correct applicator to the low-pressure service port and add the treatment as directed.
Circulate & Inspect
Let the A/C run, then inspect for fluorescent traces with a compatible UV lamp.
Safety first: Wear eye protection and gloves, work in a ventilated area, never connect to the high-pressure port, and do not overcharge the system.
Know What It Is Designed For
Best for Minor Leaks—Not Major Component Damage
A leak-stop treatment can be useful for slow, small leaks. Larger failures still require professional mechanical repair.
✓ A Good Fit For
- Slow refrigerant loss from small leaks
- Minor seepage around O-rings, seals, gaskets, or hoses
- Adding UV dye for easier future inspection
- Systems whose compressor still runs and circulates
⚠ Not a Substitute For
- Cracked or physically broken A/C components
- Large, rapid refrigerant leaks
- A seized compressor or non-circulating system
- An incompatible refrigerant product or adapter
Restore Confidence in Your A/C
Stop Guessing Where the Refrigerant Is Going
Help seal minor leaks, add UV visibility, and make the next diagnosis faster with one automotive A/C treatment.
❄️ Helps maintain cooling performance
🛠️ Targets common minor leak areas
🔦 UV dye supports accurate inspection
Frequently Asked Questions
Before You Use It
Will this repair every automotive A/C leak?
No. Leak-stop treatments are intended for small, slow leaks. Large leaks, cracked components, damaged condensers, or failed compressors require mechanical repair.
Why is UV dye included?
The fluorescent dye circulates through the A/C system. If refrigerant escapes, the dye can leave a visible yellow-green trace when viewed with a compatible UV lamp.
Where is the product installed?
Automotive A/C treatments are generally introduced through the low-pressure service port using the correct applicator. Follow the product label and vehicle service information.
How do I know whether it fits my vehicle?
Check the refrigerant label under the hood and compare it with the compatibility printed on the product packaging. Different refrigerant systems may require different product versions or adapters.
Do I need a UV light?
The leak-stop portion can circulate without a lamp, but a compatible UV lamp is needed to see the fluorescent dye and locate remaining leak points.
Automotive chemical product. Read and follow the product label, safety data, and vehicle service instructions before use. Refrigerant compatibility and installation method vary by product version and vehicle.