https://forum.deckstainhelp.com/deck-stain-questions-and-answers/sap-coming-up-through-stain/ Deck Stain Help Forum Discussion Board en-US Wed, 20 May 2026 21:18:49 +0000 wpForo 60 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/sap-coming-up-through-stain/#post-14441 Mon, 05 Jun 2023 18:50:55 +0000 No, there is no way to stop or prevent sap from leaching out. It can happen randomly and even many years after the deck is built.

]]> Deck Stain Questions and Answers Scott Paul ~ Restoring Wood & Decks Since 1993 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/sap-coming-up-through-stain/#post-14441 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/sap-coming-up-through-stain/#post-14440 Mon, 05 Jun 2023 18:34:33 +0000 My neighbor's deck was built in August 2022.  She stained it in May 2023, so plenty of time for wood to dry.  It was made with pressure-treated wood.  She used a semi-solid stain.  Not long after, sap started coming up under the stain on the stair steps, creating bubble-like protrusions filled with sap.  Looks horrible as some have burst open.  Is there a way to avoid this?  I'm asking because my house was built around same time, and I want to stain my deck and stairs.  I'm planning to use Restore-A-Deck three-step process with a semi-transparent stain.  I have not noticed any sap on my stairs or anywhere else.  Any advice would be most appreciated.  Thank you.

]]> Deck Stain Questions and Answers krd@2022 https://forum.deckstainhelp.com/deck-stain-questions-and-answers/sap-coming-up-through-stain/#post-14440