LumberJocks

Glue removal

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by ChokingOnSawDust posted 12-15-2019 07:48 PM 602 views 0 times favorited 16 replies Add to Favorites Watch
View ChokingOnSawDust's profile

ChokingOnSawDust

9 posts in 281 days


12-15-2019 07:48 PM

I am trying to remove glue after it has dried. It is tearing out the lumber with it.

Will a scraper work better? I was using a small chisel, but its not working well.

Im sure not everyone is able to get the glue off right after putting the clamps on.


16 replies so far

View Rich's profile (online now)

Rich

5148 posts in 1198 days


#1 posted 12-15-2019 08:12 PM

I assume you’re using PVA glue—yellow or white. Toluene or xylene will soften it. Less effective would be acetone. You can also sand it or scrape it. If it’s just a joint with squeeze out that’s hardened, I generally just sand it. Wait for the glue to fully cure first though.

This is an area where hide glue really shines. Even dried, you can use hot water to scrub it clean. Also, since it dries very hard, it sands well.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View ibewjon's profile

ibewjon

1182 posts in 3401 days


#2 posted 12-15-2019 10:02 PM

The manufacturers always say the glue is stronger than wood. Try to remove it sooner after assembly, when the glue starts to set up. Be careful with the chemicals, both are nasty.

View pottz's profile

pottz

7705 posts in 1593 days


#3 posted 12-15-2019 11:54 PM

i just scrape off what i can then sand it smooth no big deal.

-- sawdust the bigger the pile the bigger my smile-larry,so cal.

View Chenier's profile

Chenier

13 posts in 315 days


#4 posted 12-16-2019 12:21 AM


I assume you re using PVA glue—yellow or white. Toluene or xylene will soften it. Less effective would be acetone. You can also sand it or scrape it. If it s just a joint with squeeze out that s hardened, I generally just sand it. Wait for the glue to fully cure first though.

PVA glue softens with heat – a hot air gun should soften it without the chemicals.

I don’t fool with that – I just use a card scraper.

View wildwoodbybrianjohns's profile

wildwoodbybrianjohns

713 posts in 156 days


#5 posted 12-16-2019 12:37 AM

If I miss some sueeze-out on the initial wipe-down I cut it out carefully with a razor blade.

-- Wildwood by Brian Johns: If you tell the truth, you dont have to remember anything (S. Clemens) Edit: Now where is that darn pencil/ tape measure!

View mel52's profile

mel52

1205 posts in 873 days


#6 posted 12-16-2019 06:30 AM

I agree with all the above, but my favorite way is to use a scraper if possible. Mel

-- MEL, Kansas

View WoodenDreams's profile

WoodenDreams

887 posts in 519 days


#7 posted 12-16-2019 07:59 AM

I always try to remove as much of the glue as soon as I can after clamping. Lifting it out or scraping, sometime using a warm damp cloth. If your using a chisel to slice or cut the glue off, is your chisel sharpened. After it dries I’ll scrape or sand the glue off. With CA glue I’ll use nail polish remover.

View robscastle's profile

robscastle

6675 posts in 2813 days


#8 posted 12-16-2019 09:34 AM

What sort of glue it is would be nice

-- Regards Rob

View Lazyman's profile

Lazyman

4535 posts in 1996 days


#9 posted 12-16-2019 02:30 PM

What technique are you using that results in it tearing out chunks of wood with it?

If it is just a thin layer that results from wiping the glue when it is still wet a card scraper should work pretty well. I have actually used one of the cheap paint scrapers you can get a HD or Lowes too but the it requires a fresh blade and it is a good idea to round the corners to avoid gouging the wood. This works especially well before the glue has completely set. Scrapers are harder to use in corners so I usually just use a chisel bevel down to slowly “plane” it off.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View HokieKen's profile

HokieKen

12008 posts in 1747 days


#10 posted 12-16-2019 02:50 PM

I use a sharp block plane personally to clean up my glue joints all the time. Even if I can scrape the glue off, I usually have some uneveness to take care of. I’m sure that’s just me though ;-)

-- Kenny, SW VA, Go Hokies!!!

View Robert's profile

Robert

3602 posts in 2089 days


#11 posted 12-16-2019 03:25 PM

+1 on the the heat gun.

In the future, you might try immediately cleaning up squeeze out with wet rag (don’t use a paper towel). There’s some who will debate this but I’ve never had an issue.

-- Everything is a prototype thats why its one of a kind!!

View DannyW's profile

DannyW

255 posts in 406 days


#12 posted 12-16-2019 06:29 PM

In my first woodworking class at Woodcraft they taught us to use an ordinary paint scraper (we were making cutting boards). I find this works well for me and have never changed.

-- DannyW

View therealSteveN's profile

therealSteveN

4655 posts in 1183 days


#13 posted 12-16-2019 08:02 PM

Card scraper. If that is too dainty, then a Stanley 82 scraper.

The 82’s come in 2 types, those that are shorter handled, and articulated, I use that in corners. Then the longer handle straight. I have each type. Corners get the articulated, glued up panels get the straight arm. The bed angle is just better than a “paint scraper” For stubborn lumps of glue the card scraper doesn’t get off, and I have never noticed a problem with tear out.

Maybe just me, but I think heating the glue, or using chemicals is going to weaken the bond, and if it’s too soft then you are back doing a Norm, were you wipe it off wet with a wet rag. We know that causes problems with finishing now, and I thought we didn’t do that anymore? Optimal is a card scraper 22 minutes after glue up. Stuff is semi hard, and just comes off, no muss, no fuss. I’m so goofy on that I set a kitchen timer with each glue up.

Usually they are pretty cheap on the auction site, but following a post like this, strangely they go up in price?

-- Think safe, be safe

View wildwoodbybrianjohns's profile

wildwoodbybrianjohns

713 posts in 156 days


#14 posted 12-17-2019 07:07 PM

That articulated stanley is mighty fine. I´d like to have one of those for the arsenal. Dont think there are many of those over this side of the lake.

-- Wildwood by Brian Johns: If you tell the truth, you dont have to remember anything (S. Clemens) Edit: Now where is that darn pencil/ tape measure!

View MikeUT's profile

MikeUT

198 posts in 1968 days


#15 posted 12-18-2019 05:18 PM

Do you have any hand planes? I use an old chip breaker with a crisp but not sharp edge. I find that it knocks everything off quickly and efficiently but never digs in or scratches.

showing 1 through 15 of 16 replies

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

HomeRefurbers.com