No it does not.
add it to the oil.
Engine sealant????? Total waste of money and will do nothing but possibly harm your engine. Do not pour any engine sealant or additive in your expensive engine.
Shop for BlueDevil/16 oz. pour-n-go head gasket sealant 00209 with confidence at AutoZone.com.
How do you seal a leaking oil sump in 2c toyota diesel engine
You need the sealant on the ends where the supplied gaskets don't cover fully.
If both surfaces are clean and flat and you are using a new gasket, no sealant is necessary.
It is possible, however like you said it is temporary. It depends on how bad the leak is. I would suspect it would work, typically the whole will be small enough to work with that type of sealant.
Some head gaskets come with a coat of "Copper coat" sealant already on it. You can use copper coat on a head gasket safely. I prefer "Indian Head Shellac" myself. Just be sure to completely clean the heads first, and apply the sealant liberally. If you use too much, you can damage your engine by the sealant leaking into the engine itself.
To effectively remove sealant from a surface, you can use a sealant remover or solvent specifically designed for the type of sealant you are trying to remove. Apply the remover according to the manufacturer's instructions, let it sit for the recommended time, and then use a scraper or brush to gently remove the softened sealant. Be sure to wear protective gloves and work in a well-ventilated area.
Yes, just be sure it will withstand high temps.
To apply a water sealant on concrete surfaces, follow these best practices: Clean the surface thoroughly to remove dirt and debris. Allow the concrete to dry completely before applying the sealant. Use a brush, roller, or sprayer to evenly apply the sealant in a thin layer. Work in small sections to ensure even coverage. Allow the sealant to dry according to the manufacturer's instructions before exposing the surface to water.
The best sealant for water leaks in a home is a waterproof silicone sealant.