Simply pour in ALUMASEAL powder and wait for the patented formula to find and seal most cooling system leaks. • Quickly removes rust, grease, and deposits in one step. The Bar’s Leaks Liquid Aluminium Stop Leak is able to seal radiator leaks, freeze plug leaks, gasket leaks and heater core leaks using liquid aluminum and a material called Xtreme Cool. Johnson's Test Tank Powder is … Bar's Leaks Radiator Stop Leak is an easy to carry product for emergency cooling system leak repair. Johnson's improved stop leak powder sold only to professional radiator shops. Visbella Car Repair Accessories Car Stop Leak Powder Water Tank Radiator Stop Leak Sealing Powder Cooling System Powder 4.2 out of 5 stars 13. $9.99 - $46.80 #12. However, if left in the engine for an extended period of time, the sealant could cause damage by creating large deposits and clogging the radiator. If a stop leak is the right product for you to spend some money on then you’re in the right place. In most cases, it can be easily added to your coolant offering you a fast and simple radiator … ALUMASEAL® radiator stop leak powder is formulated to stop cooling system leaks quickly and without blocking or corroding the cooling system. Product Features: Stops leaks radiator leaks safely, quickly and easily Prevents and repairs cooling system damage Compatible with ALL antifreeze and coolants Safe for all metal, plastic, and rubber cooling system parts GUARANTEED to work • Will not clog cooling systems or cause damage. Add to radiators for additional insurance against pin hole leaks. Its widespread availability and affordable price make it an accessible option. Bar’s Leaks works on plastic, aluminum, and metal radiators in heater cores, engine cooling jacket, gaskets (including head gaskets), and freeze plugs. The AlumAseal Radiator Stop Leak Powder Blister Card is quick and easy to use; simply pop it in and drive off. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. Cooling system stop leak works best on small pinhole or seeping leaks. Zerex ZXC03 Super Radiator Sealer, 14.5 Ounce 3.6 out of 5 stars 10. This product is compatible with all antifreeze and coolant types, as well as being safe with all metal, plastic, and rubber parts. $8.99 #11. Not only does this combination of materials in the formula treated the leaks … The best radiator stop leaks are a touchy subject in the automotive world, but there are products out there which can be an effective stop-gap measure to keep your car up and running. ALUMASEAL is the original powder solution for stopping radiator and cooling system leaks. I purchased a bottle of your Bar's Leak radiator stop leak and almost like magic the two holes in my radiator stopped leaking. Formulated to seal minor leaks up to 0.9mm in the cooling system. The sealant, whether in powder or pellet form, creates deposits near a leak and swells to seal the leak, preventing coolant from escaping, which could cause the vehicle to run hot and damage the engine. What is Radiator Stop Leak? • Stops leaks safely, quickly, and easily. ALUMASEAL powder is safe with all types of antifreeze, prevents rust and helps lubricate the water pump. Radiator stop leak is a powder or liquid solution that is added to your cooling system to help stop and prevent leaks. Permatex 09116 Fuel Tank and Radiator Repair Kit Order Leak Detectors & Sealers for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. My 1968 Camaro's radiator started to leak on the tour and I thought I was done and would need to replace the radiator at a cost of around $500 before I could get back home. Check here for special coupons and promotions.