Using 3 year old unopened Wood Stain - Deck Stain Questions and Answers https://forum.deckstainhelp.com/deck-stain-questions-and-answers/using-3-year-old-unopened-wood-stain/ Deck Stain Help Forum Discussion Board en-US Tue, 22 Sep 2026 23:41:18 +0000 wpForo 60 RE: Using 3 year old unopened Wood Stain https://forum.deckstainhelp.com/deck-stain-questions-and-answers/using-3-year-old-unopened-wood-stain/#post-15072 Tue, 22 Sep 2026 21:34:33 +0000 Hard to say as the shelf life is about 2-3 years for the AC stains. Check to see if it is 100% fluid, without any clumping or skinning of the stain.

]]> Deck Stain Questions and Answers Scott Paul ~ Restoring Wood & Decks Since 1993 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/using-3-year-old-unopened-wood-stain/#post-15072 Using 3 year old unopened Wood Stain https://forum.deckstainhelp.com/deck-stain-questions-and-answers/using-3-year-old-unopened-wood-stain/#post-15071 Tue, 22 Sep 2026 20:56:18 +0000 Hi

I live in Winnipeg, Manitoba and about 4 years ago after researching your site, I bought a 5 gallon pail of Armstrong Clark Wood Stain - Sierra Redwood colour to stain my PT wood deck. I ran into some health issues and am only now ready to get to work! I cleaned and pressure washed the deck, sanded off the fuzzy bits but am wondering if the stain will still be good after all that time? It's still in the sealed original container and has been kept inside during that time. 

Thanks for your advice in advance

Steve

]]> Deck Stain Questions and Answers stevo https://forum.deckstainhelp.com/deck-stain-questions-and-answers/using-3-year-old-unopened-wood-stain/#post-15071