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Pure Tung Oil cure time??

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Forum topic by Live4Brew posted 04-17-2018 02:59 PM 618 views 0 times favorited 4 replies Add to Favorites Watch
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Live4Brew

42 posts in 3449 days


04-17-2018 02:59 PM

Hi all, in my “Brad’s Forever Adirondack” project (http://lumberjocks.com/projects/343865), I used pure tung oil on top of burned white oak for a finish. 6 months later, the chairs and table look great (but they sure do show dust, dirt, and pollen!). However, two things – I can STILL smell the tung oil (though not as prominent as it once was). Also, they don’t seem to shed water like I expected after 3 applications of oil (with a week of drying between).

Does anyone know why they would still smell like tung oil? Also, shouldn’t they shed water a bit (I know it’s not a film finish, but I expected a little more shedding during rain after 3 coats)?


4 replies so far

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John Smith

1873 posts in 579 days


#1 posted 04-17-2018 04:08 PM

if you do not wipe off the excess, as like a stain, and let dry a minimum of 24 hours,
then sand between coats, you “could” experience unsatisfactory results with a sticky,
uncured finish that may never fully dry or cure.
depending on ambient temperatures and humidity levels, results will definitely vary.
tung oil is a good mold deterrent for outside furniture, etc.

-- I am a painter. That's what I do. I paint things --

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Live4Brew

42 posts in 3449 days


#2 posted 04-17-2018 04:17 PM

I did try and wipe off the excess each coat (several times, actually – funny how it would rise back to the surface after being rubbed dry in places). I did sand – some – between coats (maybe not enough). I’m wondering if it just soaked up more oil being burned.

in re: mold – yup, that’s mainly why I was attracted to tung oil over other options.


if you do not wipe off the excess, as like a stain, and let dry a minimum of 24 hours,
then sand between coats, you “could” experience unsatisfactory results with a sticky,
uncured finish that may never fully dry or cure.
depending on ambient temperatures and humidity levels, results will definitely vary.
tung oil is a good mold deterrent for outside furniture, etc.

- John Smith


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John Smith

1873 posts in 579 days


#3 posted 04-17-2018 04:32 PM

here is another discussion group at Sawmill Creek
I used tung oil on wooden boat seats for years and had this same problem
with not fully curing – until I read about the properties through on-line painting forums.
sitting on uncured tung oil or linseed oil is not something you want on your fanny.

.

.

-- I am a painter. That's what I do. I paint things --

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Manitario

2760 posts in 3299 days


#4 posted 04-17-2018 05:34 PM

I think with pure tung oil you need at least 7 days between coats b/f adding another. Also remember reading somewhere that you’re looking at at least 6-7 coats for good water protection.

-- Sometimes the creative process requires foul language. -- Charles Neil

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