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Your cart is empty.All Weather Seal, 1 PT bottle. Can be used with Antifreeze Description Specially formulated to stop cooling system leaks when antifreeze is present Ideal for stopping radiator leaks and sealing cracked blocks in sub-freezing conditions Works best when cooling system has been thoroughly cleaned and flushed
Warren
Reviewed in the United States on September 24, 2022
So my radiator was cracked in the brass tank an I was traveling the only thing that would seal it was black pepper
Mark W. Preston
Reviewed in the United States on August 1, 2022
Did not work for me. Followed directions and still had the coolant leak between intake and head
Bag 1988
Reviewed in the United States on February 22, 2020
Great product, it stopped the leak in a very short time.
Craig hall
Reviewed in the United States on March 9, 2019
Perfect worked beautifully
Customer
Reviewed in the United States on January 25, 2018
Still have a leaking head gasket waste of money
Vincent Scaffidi
Reviewed in the United States on July 18, 2017
follow instructions or call moroso for help.
Customer
Reviewed in the United States on May 1, 2015
Head gasket leaking. This only helped slightly, and for about 3 days before it started leaking worse again. May be okay for smaller leaks. I just used the Moroso Ceramic Engine Seal and that seams to have (at least temporarily) sealed the gasket leak...
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