Alumaseal Radiator Sealer

FAQ from Alumaseals website   Will AlumAseal fix a head gasket leak or a leak in a cracked engine block?

No,

I have a truck with a large cooling system. How big a system will a tube or bottle of AlumAseal treat?

One tube or bottle of AlumAseal will treat up to 20 quarts [5 gallons]. Should I drain my cooling system and use fresh coolant before using AlumAseal? This is not necessary. However, it's always a good idea to replace coolant every 2 years unless you use an extended life coolant. Is AlumAseal harmful to brass, rubber, plastic, steel or aluminum cooling system parts? No, absolutely not. I can't reach my radiator cap. What should I do? You need to use Liquid AlumAseal (ASLC16). The radiator caps of many newer vehicles are located in remote locations. For these vehicles, follow the instructions given for radiators, but pour AlumAseal into the radiator overflow reservoir

If I use AlumAseal will it plug up my radiator, heater core or other parts of the cooling system?

Absolutely not. Alumaseal is completely safe for all radiators, heater cores, and cooling system parts.

You will recieve a 20 gram tube it will not come on a card  just the tube