2 is great for any bolts that go into watercoolant and need to be sealedbtw. A noncorrosive sensor safe rtv silicone gasket material formulated specifically for water pumps and thermostat housings.
Should I Use Gasket Sealant Ram Gasket Solutions
Best water pump gasket sealant. Highest water glycol resistance available in an rtv silicone. It can also be used to fill small imperfections in the metal surfaces promoting a more positive seal. Permatex the right stuff gasket maker. Can be used as a gasket maker or dressing. K seal coolant leak repair st5501 8oz multi purpose formula stops leaks in the radiator head gasket block water pump casing heater core and freeze plug pour and go trade trusted stop leak 41 out of 5 stars 2206. Best gasket sealer reviews recommendations 2020.
A thin coat of good silicone rtv is what id use for a gasket. Let it cure a few minutes before assembly and a few hours at least in warm weather before filling the system. But it is rather tough to remove in the future. A preferred gasket sealer used by technicians worldwide this sealer adheres to any surface is high tack. 65f to 500f 54c to 260c intermittent. Superior adhesion and flexibility.
Highest water glycol resistance available in an rtv silicone. If you flush the cooling system with a water pump attached use the old water pump and not the new one to prevent impurities from contaminating the new pump. When changing a water pump replace all old gaskets and seals with new ones. Sensor safe noncorrosive rtv silicone gasket material formulated specifically for water pumps and thermostat housings. Water pump thermostat rtv silicone gasket maker. Permatex 22071 water pump and thermostat rtv silicone gasket 05 oz 05 ounce.
Dont apply sealant to an o ring or a dry seal. Copper gasket sealant available both in brushable and in aerosol forms copper gasket sealer is fast drying and the metal content suspended within the sealant helps to dissipate heat and promote even heat transfer between the mating surfaces.