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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
2025-08-05 15:49:17
So my radiator was cracked in the brass tank an I was traveling the only thing that would seal it was black pepper
Bag 1988
2025-06-17 10:10:37
Great product, it stopped the leak in a very short time.
Craig hall
2025-04-26 11:10:13
Perfect worked beautifully
Customer
2025-03-29 16:10:29
Still have a leaking head gasket waste of money
Vincent Scaffidi
2025-03-08 14:25:40
follow instructions or call moroso for help.
Mark W. Preston
2025-02-04 13:44:32
Did not work for me. Followed directions and still had the coolant leak between intake and head
Customer
2025-01-14 10:56:06
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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