The market is filled up with a variety of freon sealant, but the best freon sealant that suits your needs can be a bit difficult to find. But, if you leave it in the hands of experts, like us, then you can be assured that you will land up with a reliable and trusted freon sealant. So, without wasting any further time, let’s dive into the article.

We spent hours scouring the internet for the best freon sealant, reading reviews and pulling from our own personal experiences to bring you our list of the top ten available on the market right now. We have presented a variety of options, so that there’s something out there for everyone. If you ask us personally, then the ultimate choice, that we would recommend you is TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL). If you are looking for something a bit on the cheaper side, then you have got your Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, Treats 1.5-5 Tons. For the rest options, read the article till the very end.

All ten of the options on our list have their own unique features that make them great, it’s up to you to decide which one makes the most sense for you. if you are looking for an efficient and effective freon sealant, our comparison chart should be of great help to you. Here is our comparative guide to the freon sealant available as well as our recommendations

Best freon sealant

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Product Title
Score

Leak Saver: Direct Inject UV - Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks - for AC, Refrigeration, and Automotive Systems Up to 5 Tons - Compatible with All Refrigerants
9.9

Leak Saver Direct Inject Refrigerant Leak Sealer, 3 Pack - 2022 Updated Sealant Formula for Most HVAC Systems Up to 5 Tons - Made in the USA
9.5

RED TEK ProSeal12 A/C Seal Treatment (4 oz. can)
9.3

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, Treats 1.5-5 Tons
8.6

Rectorseal 45316 AC Freeze PRO Nano Leak Sealer, Blue
8.5

Rectorseal 45322 Freeze Leak Repair
8.2

TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)
7.8

InterDynamics Certified AC Pro Car Air Conditioner R134A Refrigerant Stop Leak Kit, for Rubber and Metal Leaks in O Rings and Hoses, 3 Oz, CERT325-6
7.5

Fieldpiece SM480V SMAN Digital Manifold Wireless Data Logging
7.3

Leak Saver Direct Inject Dry A/C Moisture Remover (No Leak Sealant, Moisture Remover Only) - For Systems Up to 5 Tons - Converts Moisture into Synthetic Oil - Created and Used by HVAC Pros - USA Made
6.8

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Product Title

Leak Saver: Direct Inject UV - Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks - for AC, Refrigeration, and Automotive Systems Up to 5 Tons - Compatible with All Refrigerants

9.9

Leak Saver Direct Inject Refrigerant Leak Sealer, 3 Pack - 2022 Updated Sealant Formula for Most HVAC Systems Up to 5 Tons - Made in the USA

9.5

RED TEK ProSeal12 A/C Seal Treatment (4 oz. can)

9.3

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, Treats 1.5-5 Tons

8.6

Rectorseal 45316 AC Freeze PRO Nano Leak Sealer, Blue

8.5

Rectorseal 45322 Freeze Leak Repair

8.2

TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)

7.8

InterDynamics Certified AC Pro Car Air Conditioner R134A Refrigerant Stop Leak Kit, for Rubber and Metal Leaks in O Rings and Hoses, 3 Oz, CERT325-6

7.5

Fieldpiece SM480V SMAN Digital Manifold Wireless Data Logging

7.3

Leak Saver Direct Inject Dry A/C Moisture Remover (No Leak Sealant, Moisture Remover Only) - For Systems Up to 5 Tons - Converts Moisture into Synthetic Oil - Created and Used by HVAC Pros - USA Made

6.8

Leak Saver: Direct Inject UV – Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks – for AC, Refrigeration, and Automotive Systems Up to 5 Tons – Compatible with All Refrigerants


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Leak Saver: Direct Inject UV - Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks - for AC, Refrigeration, and Automotive Systems Up to 5 Tons - Compatible with All Refrigerants

$36.95  in stock
2 new from $36.95
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • THE EASIEST INJECTION METHOD: No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter.
  • MORE THAN 3 MILLION UNITS SOLD SINCE 2015: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar to how blood in your body reacts to a cut. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.
  • WITH ADDED UV DYE FOR FINDING LARGE LEAKS: Seal it or find it! If you have a leak that is simply too large for leak sealants to seal, the added UV Dye will light up brightly at the leak site when using a UV flashlight.
  • COMPATIBLE WITH ALL SYSTEMS AND REFRIGERANTS: : The Leak Saver UV is compatible with all systems, refrigerants (except ammonia), and oils. It is great for central air conditioners, car and automotive air conditioners, refrigerators, ductless mini-splits, heat pumps, geothermal heat pumps, commercial refrigeration systems, micro channel coils and more. It also works with all refrigerants including R410A Freon, R22 and replacements, R134A, R1234yf, R404A, R290, R600a, and more.
  • YOUR SATISFACTION IS OUR PRIORITY: We stand behind the effectiveness 100%. If for any reason you are not satisfied with your product, please contact us and we will make it right.

Leak Saver Direct Inject Refrigerant Leak Sealer, 3 Pack – 2022 Updated Sealant Formula for Most HVAC Systems Up to 5 Tons – Made in the USA


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Leak Saver Direct Inject Refrigerant Leak Sealer, 3 Pack - 2022 Updated Sealant Formula for Most HVAC Systems Up to 5 Tons - Made in the USA

$94.95  in stock
2 new from $94.95
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • Permanently seals refrigerant leaks and prevents future leaks; use with systems up to 5 tons.
  • Safe for all air Conditioner and refrigeration systems, valves, and tools. Compatible with all types of refrigerants and oils.
  • Injects easily and directly. No more pump downs, fussy syringes, or pressure sensitive cans. UV dye detects large leaks requiring repair.
  • Designed and used by HVAC professionals, our formula has been proven through over a decade of research.
  • Made in the USA

RED TEK ProSeal12 A/C Seal Treatment (4 oz. can)


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RED TEK ProSeal12 A/C Seal Treatment (4 oz. can)

$25.95  in stock
1 new from $25.95
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • Operation: Easy to use. Installs in minutes. Remains in system as a liquid lubricant ready to seal any future leaks.
  • Lower Cost: Less expensive than replacing leaking evaporators, condensers, compressors, and metal lines.
  • Compatibility: Compatible with most common refrigeration materials and lubricants including R134a, R12, metal components, mineral and synthetic(Ester and PAG) lubricants, seals, gaskets, hoses, compressors, and o-rings.
  • Environment: Helps environment by reducing refrigerant emissions.
  • Safety: Safe and easy to use. Less toxic than other seal treatments that contain poisonous methanol. No long term health risks have been attributed to RED TEK ProSeal.

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, Treats 1.5-5 Tons


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Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, Treats 1.5-5 Tons

$62.53  in stock
19 new from $53.49
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • Concentrated formula means less material in system
  • Clear tube so you can see the sealant go in
  • No need to pump down R-410A units
  • Perfect for split systems, heat pumps, microchannel coils, packaged units, and mini splits
  • One time use

Rectorseal 45316 AC Freeze PRO Nano Leak Sealer, Blue


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Rectorseal 45316 AC Freeze PRO Nano Leak Sealer, Blue

$55.36
$50.65  in stock
5 new from $46.00
1 used from $11.02
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • Restore AC performance quickly
  • Stop refrigerant leaks permanently
  • Safe delivery tool
  • triple action sealant
  • Low loss safety fitting

Rectorseal 45322 Freeze Leak Repair


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Rectorseal 45322 Freeze Leak Repair

$70.76  in stock
4 new from $69.00
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • AC leak freeze permanently seals leaks in air conditioning and refrigeration systems
  • Will continue to seal additional leaks for up to 1 year that meet testing specifications
  • Does not contain polymers & oem approved
  • Tested to be non-clogging to a/C compressor and recovery unit
  • Ideal for preventive maintenance and leak protection

TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)


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TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)

$26.08
$24.64  in stock
2 new from $24.64
1 used from $20.85
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • 2-Ounce Syringe Treats Up to 6 Ton Units
  • Permanently Seals Leaks in A/C and Refrigeration Systems
  • Does Not Contain Polymers, Will Not Harm A/C System Or Components
  • Additive Package Protects Against Future Corrosion
  • Compatible with All Lubricants and Refrigerants

InterDynamics Certified AC Pro Car Air Conditioner R134A Refrigerant Stop Leak Kit, for Rubber and Metal Leaks in O Rings and Hoses, 3 Oz, CERT325-6


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InterDynamics Certified AC Pro Car Air Conditioner R134A Refrigerant Stop Leak Kit, for Rubber and Metal Leaks in O Rings and Hoses, 3 Oz, CERT325-6

$32.97
$25.06  in stock
4 new from $24.99
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • Seals metal leaks in condensers, evaporators, accumulators, receiver and driers
  • Seals rubber leaks in hoses O-rings and gaskets
  • Comes with recharge hose
  • Safe for all R-134a systems
  • Professional grade

Fieldpiece SM480V SMAN Digital Manifold Wireless Data Logging


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Fieldpiece SM480V SMAN Digital Manifold Wireless Data Logging

$687.65  in stock
19 new from $623.00
2 used from $618.00
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • Advanced digital refrigerant manifold & micron gauge for HVAC & Refrigeration diagnostics & service
  • Fieldpiece digital manifold gauges accurately measure low & high pressure, with superheat and subcooling
  • Advanced digital refrigerant manifold has protected thermocouple jacks for pipe and outdoor temps
  • Four valve manifold with vacuum gauge has the ability for Job Link Psychrometer probes to connect to SMAN
  • Equipped with a data log and temperature compensated system tightness test

Leak Saver Direct Inject Dry A/C Moisture Remover (No Leak Sealant, Moisture Remover Only) – For Systems Up to 5 Tons – Converts Moisture into Synthetic Oil – Created and Used by HVAC Pros – USA Made


More Info and Images

Leak Saver Direct Inject Dry A/C Moisture Remover (No Leak Sealant, Moisture Remover Only) - For Systems Up to 5 Tons - Converts Moisture into Synthetic Oil - Created and Used by HVAC Pros - USA Made

$36.95  in stock
2 new from $36.95
Free shipping
Buy Now
Amazon.com
as of May 26, 2022 3:31 pm

Features

  • GET YOUR A/C BACK UP AND RUNNING: Help prevent system failure, preserve efficiency and eliminate corrosion by converting system moisture into synthetic oil.
  • FOR MOST AIR-CONDITIONING SYSTEMS: Use on mini-split units, heat pumps, packaged units, central A/Cs, coolers, microchannel coils, and automotive applications.
  • THE FASTER, MORE ECONOMICAL CHOICE: By converting moisture into synthetic oil, it mixes with the already existing oil, for a simpler process than vacuum pumping.
  • THE PERFECT PREP FOR LEAK REPAIRS: Use alone to dry your air-conditioning system or pair with our Leak Saver Direct Inject (our refrigerant leak sealer) for leaks.
  • 100% SATISFACTION GUARANTEE: If for any reason this didn’t work out and you’re unsatisfied, contact us for another at no cost (must be installed by certified HVAC techs).

This article was created with a hope that you will able to find the best freon sealant, suiting your requirements and we wish that we were able to succeed in our mission to do so. If you are looking for a cheap freon sealant because you will be making limited use of it, go for the TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL) which will give you what you pay for. That being said, don’t forget to share the article with your friends and keep visiting geekydeck.com for more such informative and reviews articles.