10 bestAntifreeze Leak Sealantof February 2025
112M consumers helped this year.
1
K-Seal Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant
K-Seal
9.8
10% off
2
Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml & Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's
9.6
3
Car Radiator & Hose Stop Leak Repair Additive Anti Corrosion 250ml Repairs Weld Cooling System Rads
ARZER
9.4
4
Captain Tolley’s Creeping Crack Cure (leak/crack sealer) 60ml
Captain Tolley's
9.2
5
Visbella Neutral RTV 100% Gasket Maker Oil and Water Resistance Anti-Freeze Remain Flexible Ultra 3 oz. High Temperature 600°F Sealant Tube
Visbella
9.0
OtherUp to 12% off
AMK® Holts Radweld Stops Leaks In Radiator & Hoses For Car Cooling System 250ml Repairs Leak
Holts Sealit Leak Repair 250ml, (Packing May Vary)
HOLTS Wondarweld - 500ml - WW500
Wynn's Radiator Flush Cleaner For All Car Antifreeze & Coolant Systems 325ml & Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
6
K-Seal HD Coolant Leak Repair, 472ml | HGV Radiator, Block & Head Gasket Sealant
K-Seal
8.7
7
AMK® Holts Radweld Plus 250ml Coolant Leak Repair Suitable for All Cars No Clogging Works in Whole System Permanent Non Damaging
AMK
8.4
8
LIQUI MOLY Radiator Stop Leak | 150 ml | Cooler additive | SKU: 8956
Liqui Moly
8.2
10% off
9
Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's
7.9
10
Fernox 61016 Leak Sealer LS-X External Or Internal Water Pipe Leakage Repair Seal Jointing Compound 50g. Suitable for use on a wide range of materials including copper, stainless steel, and plastic.
Kudos-Trading
7.6
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