Fingerprints in fuming?!

  • Advertise with us

« back to Finishing forum

Forum topic by Steven Gaffin posted 10-01-2013 06:51 PM 980 views 0 times favorited 4 replies Add to Favorites Watch
View Steven Gaffin's profile

Steven Gaffin

31 posts in 2459 days

10-01-2013 06:51 PM

Topic tags/keywords: fuming finish fingerprints finishing

I was talking to a work associate, who also does woodworking, and I brought up how I am planning on fuming the face frames, doors, and drawer fronts for my kitchen cabinet project. He told me how someone he knew found fingerprints in the finish of his fuming after the process.

This threw me for loop. I could see how enough of an oil coating from the finger could make a barrier between the wood and the fumes but I have never had this issue. Granted, all of my fuming has been small until now. The only other possibility I could come up with is that he had a small amount of glue on his fingers and that dried on the surface. He ended up having to where cotton gloves and sanding to a fine grit paper before fuming….

Has anyone had anything similar happen?

I just haven’t read anyone having this issue.

4 replies so far

View pintodeluxe's profile


5798 posts in 3016 days

#1 posted 10-01-2013 07:23 PM

My first thought was glue, which would make the fingerprints lighter (ammonia can’t reach with wood).
Otherwise it could have been ammonia liquid fingerprints, which could make the fingerprints darker (ammonia has greater effect in a small concentrated area).

I have never heard of this happening, so I wouldn’t worry too much.
Sapwood will stay light, and colors can be uneven with fuming. Even Gustav Stickley had to go over fumed projects to selectively darken parts of the project.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View AandCstyle's profile


3179 posts in 2460 days

#2 posted 10-01-2013 11:52 PM

I haven’t ever heard of this either, but if you are concerned, just give the critical surfaces a quick swipe with fine sandpaper just before fuming to remove the possibilities.

-- Art

View Dark_Lightning's profile


3344 posts in 3311 days

#3 posted 10-02-2013 02:45 AM

I’ve never experienced this while fuming wood or patinating metal. Then again, I know a guy whose skin oils will dissolve nitrile gloves in a matter of an hour or so. It depends on body chemistry to some extent. The obvious answer is to wear gloves during sanding. I’m not sure that wearing gloves while brushing on a finish is reasonable, though.

Then again, were they small fingerprints? I’ve found those in projects when I had younger brothers and children.

-- Random Orbital Nailer

View Steven Gaffin's profile

Steven Gaffin

31 posts in 2459 days

#4 posted 10-02-2013 02:30 PM

he didn’t really say the size he just said he found fingerprints and he had to go through this huge ordeal of sanding to get it right.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics