ratty
I'm not special I'm limited edition
Some people here seem to be getting confused with their products. K-seal is nothing like Radweld/conventional radiator leak stoppers.
Empty the bottle of K-seal into a larger container of water/anti-freeze coolant mix. Mix it well before pouring into engine coolant system. Use this method and it will NOT block your coolant system......just as long as you're not putting 20 bottles in! lol
P.S. Product is good for external leaks, but it's highly unlikely to fix a head gasket leak...sorry
Who's confused?