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Q&A Home

Kathy from Uniontown Pa writes,

Is Tupersan WP in 4lb paper bag 10 years old still effective?

I have 11 bags-It has been stored in the original cardboard box and kept very dry. Would it still be effective? What is the shelf life?


Tupersan 50 WP normally last up to 5 years if stored in a cool dry area. Please contact PBI Gordon 800-821-7925 to make sure that your product is effective or not. 

Answer last updated on: 02/26/2015

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