Top 9 Domestic Radiator Leak UK – Fillers, Adhesives & Sealants

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1. Bargainstore


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

Bargainstore #ad - Unaffected by anti-freeze. Permanently seals radiator leaks. Stops leaks in radiators and hoses. Safe for use with rubber hoses. Contains rust inhibitors.
BrandBargainstore #ad
ManufacturerBargainstore #ad
Part NumberRW2R

2. Wynn's


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

Wynn's #ad - Recommended for all "water" cooled systems of petrol, LPG and diesel engines when minor leaks are noted. Is harmless to hoses, rubber seals and all other parts of the system - does not clog any components. Can also be used as a preventive agent to pre-empt and avoid any costly future repairs. Enhanced corrosion and rust protection; compatible with all antifreeze and coolants, and with OAT organic acid technology fluids. Stops and prevents leakages in the radiator, cooling and heating system & stops head gasket leaks.
BrandWynn's #ad
ManufacturerWynn Oil UK #ad
Weight0.37 kg (0.82 Pounds)
Part Number55864

3. K-Seal


K-Seal Coolant Leak Repair 236ml

K-Seal #ad - Multi purpose ONe Step & Permanent. No flushing. Mixes with all types of Antifreeze. Item package dimension: 4. 4 cm l x 8. 8 cm w x 12. 6 cm H. Just shake, pour and go.
BrandK-Seal #ad
ManufacturerK-Seal International Limited #ad
Weight0.27 kg (0.6 Pounds)
Part NumberST5501
Warranty1 year manufacturer

4. Granville


Granville Ce-Lit Radiator Stop Leak Cement Sealant Powder 1

Granville #ad - Granville ce lit radiator Stop Leak Cement Sealant Powder 1. Product Type: Sealant. Product type:SEALANT.
BrandGranville #ad
ManufacturerCe-Lit #ad
Part Number0244

5. VELCRO Brand


Araldite Repair Putty Extremely Hard Setting Filler Solution with High Temperature Resistance For Durable Bonding & Repairs 50g

VELCRO Brand #ad - Package dimensions : 2. 7 l x 11. 3 w x 17. 5 h centimetres. Huntsman Advanced Materials. Ara-400015 good.
BrandVELCRO Brand #ad
ManufacturerVelcro Ltd #ad
Height10.16 cm (4 Inches)
Length2.54 cm (1 Inches)
Weight0.07 kg (0.15 Pounds)
Width7.62 cm (3 Inches)
Part NumberARA-400015

6. Wynn's


Wynn's 1831015 55863 Radiator Stop Leak 325 ml

Wynn's #ad - Stops head gasket leaks. Improved protection against rust and corrosion. Stops and prevents leakages in the radiator, cooling and heating system. Will not harm rubber hoses, gaskets or other system components.
BrandWynn's #ad
ManufacturerWynn's #ad
Weight0.03 kg (0.07 Pounds)
Part NumberWY 1831015

7. 5in1


5in1 Radiator Stop Leak 310ml

5in1 #ad - Stops and prevents leaks. For g12 and g12+ coolants. Added corrosion inhibitors. Protects the cooling system.
Brand5in1 #ad
ManufacturerMaumo International #ad
Part Number687017

8. Gold Eagle


Gold Eagle ASBP-73 Alumaseal Radiator Stop Leak Blister Pack, 20 g

Gold Eagle #ad - Compatible with all anti-freeze. Will not clog cooling systems. Stops leaks safely, quickly and easily. Safe and effective for all metal, plastic and rubber cooling system parts.
BrandGold Eagle #ad
ManufacturerGold Eagle #ad
Weight0.02 kg (0.04 Pounds)
Part NumberASBPI12

9. Liqui Moly


LIQUI MOLY Pro-Line Radiator Stop Leak K | 250 ml | Cooler additive | SKU: 5178

Liqui Moly #ad - Used for sealing small leaks in cooling circuits of passenger motor vehicles, commercial vehicles and buses. For professional users only. Also suited for cooling water circuits equipped with water filters.

Shake container before use. Cold water. Small leaks caused by stone impacts, porous soldering points and hairline cracks in the cooling simple are easy to localize one notices that the cooling water level is sinking. Start up the heater. With the engine running, pour the contents into the coolant at operating temperature and allow the engine to continue running for at least a further 10 minutes.

Contents will treat up to 40 liters of coolant. Suitable for all cold water and hot water systems, with or without water filters Also suitable for aluminium and plastic radiators. Also suitable for preventative use. Compatible with all standard cooling stabilisers and frost protection agents. 250 ml of paste is sufficient for 40 litres.
BrandLiqui Moly #ad
ManufacturerLiqui Moly #ad
Height13.41 cm (5.28 Inches)
Length66.09 cm (26.02 Inches)
Weight0.27 kg (0.61 Pounds)
Width23.6 cm (9.29 Inches)
Part Number5178
Warranty2 year manufacturer