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FAQ

Stops Radiator & Heater Core Leaks
Safely & Effectively.

 

AlumAseal

Q: Will ALUMASEAL® brand fix a head gasket leak or a leak in a cracked engine block?
A: No, but there are products available just for that purpose, called Block Leak Sealers.

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Q: I have some old ALUMASEAL® brand in my garage. How long will it last?
A: ALUMASEAL® brand has an indefinite shelf life, provided the package has not been opened.

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Q: If I use ALUMASEAL® brand will it plug up my radiator, heater core or other parts of the cooling system?
A: Absolutely not. ALUMASEAL® brand is completely safe for all radiators, heater cores, and cooling system parts.

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Q: I have a truck with a large cooling system. How big a system will a tube or bottle of ALUMASEAL® brand treat?
A: One tube or bottle of ALUMASEAL® brand will treat up to 20 quarts [5 gallons/ 18.9 L].

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Q: How long should ALUMASEAL® brand take to work?
A: You should notice the leak slowing within a few minutes after adding the product, but certainly within 200 miles of driving or less, as it takes a while to thoroughly circulate through the cooling system and stop the leak.

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Q: Will ALUMASEAL® brand stop leaks in a cooling system using extended life antifreeze like Dex-Cool®?
A: Yes. ALUMASEAL® brand is effective in all extended life coolants. Dex-Cool® is a licensed trademark of General Motors Corp.

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Q: Should I drain my cooling system and use fresh coolant before using ALUMASEAL® brand?
A: This is not necessary. However, it's always a good idea to replace coolant every 2 years unless you use an extended life coolant.

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Q: Which product works best, the liquid or powder?
A: They work equally well at stopping a leak but the liquid also contains conditioners.

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Q: Is ALUMASEAL® brand harmful to brass, rubber, plastic, steel or aluminum cooling system parts?
A: No, absolutely not.

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Q: Will ALUMASEAL® brand stop a leak in a cooling system rubber hose?
A: No.

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Q: I can't reach my radiator cap. What should I do?
A: You need to use Liquid ALUMASEAL® brand (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® brand into the radiator overflow reservoir.

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