Hello Pa-18cub150,

I use Welbond to repair foam models.

I only use CA (fast and slow CA) for tacking only.

I use 5 or 12 minutes epoxy also for tacking and often for non-balsa wood

I use 30 minutes epoxy for locations where added strength is needed.

All the rest of my balsa construction use Sig-Ment or Titebond.

The RC56 formulas dry clear and remain elastic. I use it for canopies.

I also fillet all my gluing for added grab areas.

Zor