weathered pressure treated deck, which stain and prep? - Deck Stain Questions and Answers https://forum.deckstainhelp.com/deck-stain-questions-and-answers/weathered-pressure-treated-deck-which-stain-and-prep/ Deck Stain Help Forum Discussion Board en-US Tue, 28 Apr 2026 11:40:09 +0000 wpForo 60 RE: weathered pressure treated deck, which stain and prep? https://forum.deckstainhelp.com/deck-stain-questions-and-answers/weathered-pressure-treated-deck-which-stain-and-prep/#post-12641 Thu, 06 Jun 2019 10:45:35 +0000 1. Redo with  Deck Cleaner and pressure washing. Wood Brightener after.

2. Yes, that will work.

]]> Deck Stain Questions and Answers Scott Paul ~ Restoring Wood & Decks Since 1993 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/weathered-pressure-treated-deck-which-stain-and-prep/#post-12641 weathered pressure treated deck, which stain and prep? https://forum.deckstainhelp.com/deck-stain-questions-and-answers/weathered-pressure-treated-deck-which-stain-and-prep/#post-12639 Thu, 06 Jun 2019 04:04:56 +0000 We just bought a home in Minnesota.  It has a north facing deck of pressure treated wood.  The deck is probably 10? years old and looks like it hasn't been treated in 3-4 years.  I found a partial can of Pittsburgh Ultra waterproofing sealant, which looks like what was last used.  The deck gets full sun and harsh winters.  The sealant has completely worn off 90% of the surface (except under the eves) and there is some minor cracking and cupping, a little mold, and a bit of dirt.   I used Olympic deck wash and gave it a gentle pressure wash, which helped.  Questions:

1) There's still some discoloration/dirt and there's still some sealant on the deck where it's protected under the eves.  Do I need to sand?  Or should I try washing again with another product?

2) Based on what I've read here, I was thinking of trying a semi-transparent oil stain like TWP100 or Armstrong Clark.  Is that the best plan given the environment?  

Thanks, love this site!

713,712

]]> Deck Stain Questions and Answers Erik1234 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/weathered-pressure-treated-deck-which-stain-and-prep/#post-12639