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Best Radiator Sealer

From leading brands and best sellers available on the web.
#1

Winner

JB Weld Hi

JB Weld

JB Weld Hi Temp Silicone Gasket Maker and Sealant, Red, 85 g

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#2
JB Weld Si

JB Weld

JB Weld Silicone Gasket Maker and Sealant, Black, 85 g

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#3
Bar's Leak

Bar's Leaks

Bar's Leaks HG-1 Head Seal Blown Head Gasket Repair

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#4
BlueDevil

BlueDevil Products

BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

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#5
J-B Weld 3

J-B Weld

J-B Weld 31314 High Temperature RTV Silicone Gasket Maker and Sealant - Red - 3 oz.

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#6
CRC Leak S

CRC

CRC Leak Stop Spray Seal 350 g, Opaque

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#7
Rescue Tap

Bond It

Rescue Tape, Self-Fusing Silicone Tape, Emergency Plumbing Pipe & Radiator Hose Repair, Electrical Insulation, Military Std, 1" x12', Black

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#8
CosWarm CW

CosWarm

CosWarm CW4 Central Heating Leak Sealer - Treats Up to Single 18 Radiators – Leak Sealant for Boilers, Radiators & Pipes - Stops Minor Leaks & Weeps, Fixes Pressure Loss

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#9
Plextone S

Plextone

Plextone Silicone Engine Repair Gasket Seal Maker High Temperature Heat Resistant from -80ºF to 600ºF

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#10
Permatex H

Permatex

Permatex High Temperature Thread Sealant, 50 ml

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