Answer
![RonDawson](https://data3.answerbase.com/answerbase/1852/UserFiles/User44682/profileImage44682.jpg?634897245130000000)
May 29, 2018 - 04:05 AM
If is it opened, then the life should be 2-3 years if left in a garage or similar area. If left outdoors in a shed, it may only last 2 years or so.
If it is unopened, then add a year or so to the above years. In most cases, it may actually be effective much longer, but for maximum effectiveness and strength, use it within 2-3 years.
Ron
If it is unopened, then add a year or so to the above years. In most cases, it may actually be effective much longer, but for maximum effectiveness and strength, use it within 2-3 years.
Ron
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