Hello everyone!
Does anyone know of a really GOOD wood glue?
I need to glue steps for a pine staircase. I've previously used Casco (is that what it's called?) but I'm not satisfied with it...
 
Without being an expert in this area, isn't it mostly a question of how well you can press the glue?

Furthermore, casco has (at least) a couple of different qualities of wood glue that are differently elastic for various purposes.

I read somewhere that with casco, you should be able to loosen the clamps after just 10 minutes if you've managed to achieve sufficiently high pressure and at the right temperature.
 
Some time ago, I glued two beams together into a post. Clamped them with a number of clamps and let them be under pressure for a day.
A week later the post cracked along the glue seam.
Hence my Casco skepticism...

However, it could be that the wood was somewhat moist and that I used winter glue, which is apparently an unsuitable combination, see:

http://www.casco.se/_upl/pdf/forside/Limning%20av%20tr%E4.pdf
 
And they might not have been completely even either? The more even the wood, the thinner the glue line, the stronger the glue joint. Don’t skimp on the glue, apply generously. Casco has good products otherwise...
 
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Were the surfaces completely flat?

I believe that professionals often plane just before gluing, which isn't always so easy for us DIY enthusiasts.

If you have slightly concave surfaces on the beams, I doubt you can "force them flat," no matter how many clamps you use.
 
PU glue is good, the one that foams.
 
The surfaces were completely flat and even, I had run them through the planer. However, the wood was stored outside (under a roof), so I suspect that the moisture content might have been too high...
 
Joints on Norre:

PU (polyurethane adhesive) is extremely strong, but must be kept under substantial pressure to prevent expansion. However, when used correctly, it becomes stronger than the wood itself (I know from experience when I've glued incorrectly and tried to retract... ;) )

I never use anything other than PU adhesive these days, and would definitely use it if I were to glue together stair steps.

/Kibba
 
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