LumberJocks

How do I make this? A three piece corbel painted on the outside and stained on the inside.

  • Advertise with us

« back to Finishing forum

Forum topic by RickDel posted 02-20-2020 05:26 AM 989 views 0 times favorited 14 replies Add to Favorites Watch
View RickDel's profile

RickDel

34 posts in 479 days


02-20-2020 05:26 AM

Hello, I’m looking for advice on finishing some corbels like the ones pictured below. I know I can’t glue painted or stained wood, so how do I complete this? What’s the steps? Thanks


14 replies so far

View John Smith's profile

John Smith

2242 posts in 846 days


#1 posted 02-20-2020 01:36 PM

are you wanting to have the two sides painted white
and the middle stained wood ??
(how many are you going to make).
I would stain just the show sides of the center piece
and paint only the show sides of the outside pieces
leaving enough raw wood in the middle for the glue lines.

.

-- I am a painter: that's what I do, I like to paint things. --

View SMP's profile

SMP

1892 posts in 589 days


#2 posted 02-20-2020 01:37 PM

Why can’t you glue it? I guess i’m not understanding something.

View Phil32's profile

Phil32

998 posts in 587 days


#3 posted 02-20-2020 04:35 PM



Why can’t you glue it? I guess i’m not understanding something.

- SMP

Because most stains and paints seal the wood, preventing the glue penetration necessary for a good joint.

-- Phil Allin - There are mountain climbers and people who talk about climbing mountains. The climbers have "selfies" at the summit!

View sras's profile

sras

5343 posts in 3813 days


#4 posted 02-20-2020 05:08 PM

What John said.

-- Steve - Impatience is Expensive

View CaptainKlutz's profile

CaptainKlutz

2714 posts in 2178 days


#5 posted 02-20-2020 05:23 PM

Easy.
Sand both contact surfaces with 40-60grit, exposing the wood; and use what ever glue you want.
Mask the inside exposed edges on outside corbel before sanding.
The large grit will leave enough surface area that almost any adhesive can form a strong bond, even with little paint/stain left behind.
If plan is outdoor use, the a slow cure epoxy would be my adhesive of choice.
Plus if you get a little squeeze out, the clear epoxy will be less noticeable.

YMMV

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

View RickDel's profile

RickDel

34 posts in 479 days


#6 posted 02-21-2020 02:16 AM

Thanks for the replies…

“are you wanting to have the two sides painted white
and the middle stained wood ??
(how many are you going to make).
I would stain just the show sides of the center piece
and paint only the show sides of the outside pieces
leaving enough raw wood in the middle for the glue lines.”

John, Yes, two outsides painted and inside stained (same as shelf). I’m making four sets. Thanks for your suggestions.

“Easy.
Sand both contact surfaces with 40-60grit, exposing the wood; and use what ever glue you want.
Mask the inside exposed edges on outside corbel before sanding.
The large grit will leave enough surface area that almost any adhesive can form a strong bond, even with little paint/stain left behind.
If plan is outdoor use, the a slow cure epoxy would be my adhesive of choice.
Plus if you get a little squeeze out, the clear epoxy will be less noticeable.”

CaptainKlutz, Thanks!

View SMP's profile

SMP

1892 posts in 589 days


#7 posted 02-21-2020 02:21 AM


Why can’t you glue it? I guess i’m not understanding something.

- SMP

Because most stains and paints seal the wood, preventing the glue penetration necessary for a good joint.

- Phil32

Big box stores literally have aisles full of various glues and adhesives that will stick to stick to paint and stain no problem. Especially something decorative like a corbel. I mean sure, if I was going to stand on it i might buy a $3 tube of 5-minute epoxy but would have no problem putting my full weight on it.

View MrUnix's profile

MrUnix

7849 posts in 2883 days


#8 posted 02-21-2020 05:46 AM

If you are concerned about the glue not holding long term… just glue them up, then drill a few holes through the pieces (through all three pieces) and glue in some dowels. Cut/sand flush to the outside then re-paint where the dowel ends are left exposed.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View Kazooman's profile

Kazooman

1449 posts in 2636 days


#9 posted 02-21-2020 01:37 PM

I agree with those who are not worried about the glue holding given the manner in which the corbels will be used. If you are concerned enough to go with Brad’s dowel system you can plan ahead and drill the holes before the glue up and leave the holes in the painted pieces blind. Use dowel centering pins to do the alignment. Personally, I wouldn’t bother.

Nice looking corbels, by the way. I seem to recall your question about marking a pattern. It looks like you nailed it.

View Tony1212's profile

Tony1212

402 posts in 2418 days


#10 posted 02-21-2020 01:53 PM

I can’t tell in the picture, but it looks like the white sides have scroll saw cuts that would (theoretically) show the stained wood through the holes. So sanding the sides for glue might not work.

But since the sides are painted, you can drill holes in them for screws and cover the screw heads with wood filler and repaint.

-- Tony, SW Chicago Suburbs

View bondogaposis's profile

bondogaposis

5687 posts in 3035 days


#11 posted 02-21-2020 02:11 PM

If you use a water or alcohol base dye instead of stain you can glue it without detriment.

-- Bondo Gaposis

View RickDel's profile

RickDel

34 posts in 479 days


#12 posted 02-21-2020 06:05 PM

SMP, I guess I was fixated on “wood glue” and never considered a non-wood glue adhesive over paint / stain.
Bondo Gaposis, thanks. I didn’t know dyes could be used with wood glue.
Kazooman, thanks for the dowel idea.

“I can’t tell in the picture, but it looks like the white sides have scroll saw cuts that would (theoretically) show the stained wood through the holes”

YES!! It looks like the entire outside pieces are painted and the inside piece is stained. I couldn’t see how this could be done with wood glue.

Thanks for all the responses. I think I’ll just try to leave a small portion of exposed surface for wood gluing. I wasn’t sure that would work, but I’m going to try it.

View SMP's profile

SMP

1892 posts in 589 days


#13 posted 02-21-2020 06:23 PM



SMP, I guess I was fixated on “wood glue” and never considered a non-wood glue adhesive over paint / stain.

- RickDel

I pretty much keep a bottle of CA glue and a syringe of 5 minute epoxy in my top toolbox drawer at all times and treat them like “tools”. Epoxy will stick just about anything together and fill gaps etc. I use wood glue too where it makes the most sense, and have 3 or 4 types of titebond on hand. Just use the “best tool for the job” instead of forcing a square peg through a round hole.

View Kelly's profile

Kelly

2830 posts in 3628 days


#14 posted 02-22-2020 04:45 AM

Like SMP, I have more than one glue. I have CA (commercial versions), over a gallon of epoxy, the usual Titebond, hyde, contact, powdered marine…. In short, where there’s a need, there’s a glue.

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