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Original Post: Waterproof previously finished furniture
Hi, I'm in a bit of a mess and after spending days googling. I'm overloaded by so much information that I just have no clue what to do with it. Doesn't help living in Singapore, where there hardly are proper DIY stores and products available.
I made a pallet sofa for outdoor used and I stained/whitewashed it, thinking I would use some sealant after to waterproof it. However, upon reason more it seems that the sealant goes on first, followed by a stain. I'm a first time DIYer, clearly.
I used water based paint and diluted it 50 percent with water. I applied the mixture on the pallet and rubbed it off with a cloth. However, since certain parts didn't absorb any paint at all, it just got stuck on top. I was fine with that, as I didn't want it to look perfect. So I guess I would say it's somewhat stained and somewhat painted. But now it seems there is no product I can apply on top to waterproof it!! What should I do to waterproof it? Sand the whole thing down again and use proper sealant/stain (or dye)? Is this necessary? Is it even possible? I'm totally clueless at the moment.
Highlights from the Thread
marksr Forum Topic Moderator
What kind of exposure to the elements will it see? You could apply a spar urethane over your “stain.” How long the finish will hold up is dependent on how severe the weather it's exposed to. Could fail in 6 months or last several years.
Had you applied a sealant prior to the stain - the stain would not adhere well.
mitch17 Group Moderator
Spar urethane is the only thing I can think of - you'd need several coats and make sure not to miss a single spot.
Sorry, but I just don't see this holding up well long term if left outside.
What about patio furniture? By time you spend all that money on paints and sealers, you could have bought patio furniture.
You cannot waterproof furniture. I want that to be clear. You can apply a finish to help protect it from the elements, but it will not last very long. Expect to reapply the finish.
Thanks for the comments so far. I live in Singapore, so it's quite humid. The furniture is on a covered balcony, but it can rain in from the side. I guess my biggest concern at the moment is not that the sofa will start to rot (I'm fine if it lasts me 2-3 years), but more that the paint/stain will actually get on my clothes and on the balcony when it starts raining.
And oh, even with all the paint, the DIY route is still much cheaper. The cheapest sofa + coffee table here will set you back at least USD600 and then you have something that looks terrible. Anything decent will cost you USD1000 and up. So I'm happy with my pallet solution, as long as I don’t get paint on my clothes!
marksr Forum Topic Moderator
Sounds like a spar urethane is what you need. It will seal the paint/stain so it won't wear off. Since it's a covered balcony the urethane should hold up ok. Sun and rain is what kills the finish but it sounds like it will be somewhat protected.
Thanks! I might just give that a go.
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