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10 bestStop Leak For Radiatorsof February 2025

112M consumers helped this year.

15% off

1

Polar Clear Leak Fix Spray - 400ml - Waterproof Roof Sealant - Instantly Seals Leaks and Cracks, for Lasting Protection on Roofs, Drainpipes and Gutter Repairs, for Interior and Exterior Use
Polar Clear Leak Fix Spray - 400ml - Waterproof Roof Sealant - Instantly Seals Leaks and Cracks, for Lasting Protection on Roofs, Drainpipes and Gutter Repairs, for Interior and Exterior Use

Polar Specialist Coatings

9.8

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2

K-Seal Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant
K-Seal Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant

K-Seal

9.6

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3

Car Radiator & Hose Stop Leak Repair Additive Anti Corrosion 250ml Repairs Weld Cooling System Rads
Car Radiator & Hose Stop Leak Repair Additive Anti Corrosion 250ml Repairs Weld Cooling System Rads

ARZER

9.3

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4

K-Seal HD Coolant Leak Repair, 472ml | HGV Radiator, Block & Head Gasket Sealant
K-Seal HD Coolant Leak Repair, 472ml | HGV Radiator, Block & Head Gasket Sealant

K-Seal

9.1

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5

LIQUI MOLY Radiator Stop Leak | 150 ml | Cooler additive | SKU: 8956
LIQUI MOLY Radiator Stop Leak | 150 ml | Cooler additive | SKU: 8956

Liqui Moly

8.8

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K-Seal Permanent Coolant Leak Repair for Cooling Systems Head Gaskets Radiators

K-Seal Permanent Coolant Leak Repair for Cooling Systems Head Gaskets Radiators

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STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK

STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK

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Holts LOYRW2R Radweld 250ml

Holts LOYRW2R Radweld 250ml

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AMK® Holts Radweld Stops Leaks In Radiator & Hoses For Car Cooling System 250ml Repairs Leak

AMK® Holts Radweld Stops Leaks In Radiator & Hoses For Car Cooling System 250ml Repairs Leak

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6

Holts 1831469 Radweld Plus New Formula 250ml
Holts 1831469 Radweld Plus New Formula 250ml

Holts

8.5

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29% off

7

JENOLITE Stop Leak Sealer Spray | CLEAR | 400ml | Leak Sealer for Gutters and Flat Roofs | Waterproof Gutter Sealant | Fills, Seals & Stops Leaks | Long Lasting Waterproof Sealant
JENOLITE Stop Leak Sealer Spray | CLEAR | 400ml | Leak Sealer for Gutters and Flat Roofs | Waterproof Gutter Sealant | Fills, Seals & Stops Leaks | Long Lasting Waterproof Sealant

JENOLITE

8.2

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10% off

8

Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml

Wynn's

7.9

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9

AMK® Holts Radweld Plus 250ml Coolant Leak Repair Suitable for All Cars No Clogging Works in Whole System Permanent Non Damaging
AMK® Holts Radweld Plus 250ml Coolant Leak Repair Suitable for All Cars No Clogging Works in Whole System Permanent Non Damaging

AMK

7.6

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10

Fernox 61016 50ml LS-X External Leak Sealer
Fernox 61016 50ml LS-X External Leak Sealer

Fernox

7.4

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