lost in the maze of finishing an extrior piece....

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Forum topic by yellabret posted 07-12-2013 12:08 PM 721 views 0 times favorited 2 replies Add to Favorites Watch
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56 posts in 2229 days

07-12-2013 12:08 PM

I am now in the construction phase of “The Mother of all Wedding benches” for my daughter and son-in-law to-be, made out of live edge slab cypress. Waterlox and other marine poly’s add a undesirable yellow color and i really dont want that. The bench will be on a porch, subject to occasional windblown rain and maybe very low sun angles, in central Texas. after much consternation i am leaning toward a marine grade penofin – i trust the kids to reapply an oil finish on an annual basis, but i would hate for them to have to sand an re-apply a poly – another reason to lean toward oil. any warnings or advice?

my main concern is the legs, which are basically 1’ wide slices off of a 3’ section of trunk, so the end-grain will be in contact with the surface – be it concrete or wood, but not bare ground. actually, i plan to have small glides to lift it a tad, but the end grain will still be there like a bunch of straws waiting to suck up moisture. I am wondering what the best way to seal this is? just several coats of a poly soaked in? i am afraid of an epoxy in that it may crack with time. maybe Anchor Seal?

2 replies so far

View Clint Searl's profile

Clint Searl

1533 posts in 2388 days

#1 posted 07-12-2013 12:52 PM

Coat the bottom of the legs with acrylic roofing cement to prevent water absorption. Leave the rest of the bench unfinished.

-- Clint Searl....Ya can no more do what ya don't know how than ya can git back from where ya ain't been

View fredj's profile


186 posts in 1844 days

#2 posted 07-12-2013 10:16 PM

I made a cypress table for outdoors use for myself. The legs are cypress pickets from a house built in 1852 and torn down in the 1960s. As the house was on the Gulf of Mexico in Alabama, they got rained on a lot. The end gain was fine. The top is cypress I bought. Finished both with a coat of Watco’s exterior oil. Spar varnish on the top only as it will and has all sorts of things placed on it, and should have a surface coat. Spar, as it is better for outdoor use that poly. Re oiling is easy on the on the rest of the table. Leaving it unfinished it will grey over time. Cypress will rot, but it takes a very long time to do so. Yes, I did oil the bottom of the legs and like your bench my table is on a porch that get some rain (more rain) and sun.

-- Fredj

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