🔧 Seal leaks like a pro—fast, safe, and eco-smart!
RED TEK ProSeal12 is a 4 oz. liquid sealant designed for quick, permanent leak repair in A/C and refrigeration systems. Activated by moisture, it seals metal and rubber leaks while eliminating system moisture to improve efficiency and reduce compressor stress. Compatible with common refrigerants and lubricants, it’s a cost-effective, eco-friendly solution trusted by industry leaders.
| ASIN | B00DJDYS58 |
| Best Sellers Rank | #627,280 in Automotive ( See Top 100 in Automotive ) #656 in Automotive Sealants #6,924 in Oils & Fluids |
| Brand | RED TEK |
| Date First Available | June 21, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 6.7 ounces |
| Liquid Volume | 2 Fluid Ounces |
| Manufacturer | Thermofluid Technologies |
| Material | Metal |
| Number of Items | 1 |
| Package Information | Can |
| Product Dimensions | 11 x 8 x 7 inches |
| Recommended Uses For Product | Lubricant |
| Specific Uses For Product | Repairing leaks, maintaining air conditioning and refrigeration system efficiency |
| UPC | 819331004027 |
| Unit Count | 4 Ounce |
| Upper Temperature Rating | 239 Degrees Fahrenheit |
M**L
Highly recommend
Excellent item, works exactly as described.
D**.
This is the one you want to buy
Bought another Red named product and the can leaked out the sealant from the plastic top. This can was installed and sealed a leak . Highly recommend this one.
L**Y
Worksa as intended
Worked great on 30 year old car, seal the leak completely
J**G
works well on older cars.
We used it on a R-12 system with a new compressor and dryer. It work fine and blows cold and has no leaks. It take less gas than R134 or r12 so it works out to be cheap. Don't believe the literature. Pump down the system before you add it. Their instructions are awful and conflicting don't plan on any tech help from them and the internet is not much help either
E**R
Worked wonders on my 21 year old truck
Apparently had a small leak in the evaporator behind the dash. Hundreds of $$ to replace. Put one can of Proseal into the system 2 months ago and it has been putting out very cold air just as it did when new. Did I mention this is a 21 year old Dodge Dakota truck. Excellent product that does just what it promises. How great to find a product that actually works as promised.
N**E
Did its Job
Despite general advice not to use this sort of product it kept my old Saab running like a champ after it developed a slow failure. Held charge,compressor compressed and cold air came out the vents, Job done for multiple years. Your results may be different, your risk, your choice.
D**D
Destroyed the A/C system
It will need a complete overhaul now. I will probably junk the car instead and buy a new one.
M**N
Works
Works good and shows if you have a big leak
Trustpilot
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