Best glue for spotted gum

[dales133]

Hi there I was hoping for some insight by those more experienced than me at gluing up spotted gum.
I'm currently building a teardrop camper and I am about to start on the rear hatch ribs.
I have some 140 x 35 spotted gum witch I will need to cut and but join on an angle to be able to cut the curved ribs out of.
I was going to biscuit join it as well.
I've currently got titebond 2 &3 as well as gorilla polyurethane glue to chose from.
What would be your preferred glue?
If spotted gums a no go I'll use Fiji an mahogany in the same dimensions witch will also require the same treatment.
Any help/advice would be greatly apreciated, regards dale

[sje-tools]

Titebond 1 - nothing fancier required. I've just made a unit made from Spotted Gum - all panels were made from 7 x 22mm width spotted gum lengths all edge jointed and the doors frames butt jointed - no problems, no joint failure ... the only thing I found with Spotted Gum was how prone to tear out it was when using the router or thicknesser.

[dales133]

Thanks sje.
I've only got tb2 and tb3, witch would be your pick of the 2?

[FenceFurniture]

Depends on how strong you need the joint to be, and whether or not it may be exposed to moisture. Rub the joint faces with Acetone before gluing if you think the Spotty might be a bit greasy.

[dales133]

http://images.tapatalk-cdn.com/15/07/20/b299ed3dd349c2d3d8890fd51c910455.jpg

This is a diagram of the hatch stringer similar to what I need to make.
The 135 timber isn't wide enough to cut the complete curve out of.
What I propose to do is cut the lenth of timber in half on a suitable angle and buiscut/but join it back together.
It does have seals around the hatch that should keep all moisture out but it will be subjected to some stress upon open g and closing.
The two main reasons to use spotted gum is I have some well seasoned (I've had it aproximatly 3.5 years and believe it was stored for several years prior to that) and I've already used some in the galley.
http://images.tapatalk-cdn.com/15/07/20/eb212d6e2b274830c3a302ff190c9a1c.jpg
I can't aford for this joint to fail due to the amount of work it would require to correct.
I'd very much apreciate any advice regarding alternatives to this joint if it isn't room ended.
Regards dale

[Bob38S]

I'm presuming, being a caravan and the different environments it will be in that there will be exposure to moisture, therefore, I would use Titebond III.

[dales133]

Thanks bob,that was the solution i used and though i havnt realy stressed the joint it seems the have done a great job

Sent from my SM-N9005 using Tapatalk

[Tahlee]

Hi Dale

edge to edge, even with a biscuit, will create a possible weak point

have you considered a laminated approach?

Perhaps band saw two 35mm pieces to create a centre slot down the board say 12 mm wide and 300mm long

Cut another to make a 12mm x 600 mm and use it as a long tongue to join the other pieces

the area of bond will be huge compared to a biscuit


depending on on you design ang board width you may be able to take this approach (shorter than 600 slots perhaps) to create a curved outcome which will result in one cut piece from a large laminated board

Im in the eltham area if you need a hand in cutting

regards

rob

[Lappa]

Rob
this post is nearly 12 months old.

[Tahlee]

Rob
this post is nearly 12 months old.


Oh, I guess it all went well then
Rob