cleanmycorolla
New member
- Apr 27, 2012
- 3,805
- 0
Maybe I should have said "decades".
The 16oz bottles of sealants I have are about 4years old, but are still good. But those are 16oz bottles. I can't begin to think of how long a gallon would last. I would guess that sooner or later it would have to separate out and evaporate to a point of not being usable before I finished using it.
You ever had a gallon go bad. I had a gallon of tire shine to completely haywire but that's it!