Dave P.
Last balsa/tissue job was 40+ yrs. ago and I used elmers white school glue.  Now time for my first balsa electric trainer.  CA glue vs. hot glue sticks ( gorilla),,, any thoughts? Most of my 'research' only deals with the ca glues, thin, medium, thick types. This trainer is a laser cut kit.
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bogusbandit56
Dave P. wrote:
Last balsa/tissue job was 40+ yrs. ago and I used elmers white school glue.  Now time for my first balsa electric trainer.  CA glue vs. hot glue sticks ( gorilla),,, any thoughts? Most of my 'research' only deals with the ca glues, thin, medium, thick types. This trainer is a laser cut kit.

Welcome to the forum DP,
On my large balsa builds I used white PVA glue and thin CA on smaller builds I would definitely NOT used hot glue on a Balsa build. The hot glue sits on top of the wood but wet glues soak into the grain forming a better bond.

The problem with CA is sticking the parts to your fingers and thumb.
I knew a fellow that assembled his sailplanes dry and then used CA on the joints, I was never confident in that method because it relies on the glue to wick into the joints.
Best of luck with the build I hope you can show your progress.

PS I would try to avoid hot glue in most types of builds because of the weight and the multitude of invisible strands it leaves behind which ruins the finish.
Wot, no Depron?
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solentlife
As an old trad builder ... I have an aversion to CA. Why ? It creates a rock solid joint --- the emphasis on ROCK.  It wicks into the wood and hardens up and any stress / impact shatters the wood at end of the CA to clear wood.
Its a fantastic adhesive - ONCE you have joints clean and actually mating properly. We all know the joint that LOOKS good but never sets ... you put extra CA ... still it doesn't take.
Hot Glue ? Great for those foamies and quick repairs ... but also able to pull it away later to do a proper repair.

My personal preference for Balsa (actually most kits today are not balsa - they are Lite Ply ...) are :

5 min Epoxy
PU Glue (I buy Generic but most people know it by the name Gorilla Glue)

The Epoxy is used sparingly creates a very strong bond and gap filling.
The PU is very light as its a foaming material and can actually create fillets / re-inforcement when used ... 

If you have doublers or laminating to do --- then spray glue or Bostik style contact glue ... so it still retains flexibility.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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