Best Glue For Bent Laminations

I am a banjo builder and make 11 diameter circular three ply steam bent laminations that are 5 8 thick total.
Best glue for bent laminations. I have found the best adhesive for this to be the urea kind and i use ultra cat which can be lightened to maple color with an additive. Types of glue for laminating. The wood used was hard maple one of the more difficult from both the glue adhesion and bending stiffness. What type of glue should i use.
Yellow glue sets soft and fast. The glue lines from jumping out. Standard wood glue is not the best choice for bent laminations. The first is the one woodworkers use to glue together planks of wood to form a wide surface for a.
Each lamination has a scarf joint. I haven t tried unibond but i imagine it would be. 10 layers 1 8 at about 5 radius after the glue had cured for 24 hours on the form the parts were laid aside for at least a week. While resorcinol has a.
Gary herber langley none. It is also prone to glue creep a phenomenon in which the cured glue creeps out of the laminations over time resulting in unsightly raised glue lines. Epoxy urea resin resorcinol and polyurethane are all good choices for bent laminations. Quite a while back i did a series of glue tests on bent laminations.
Best glue for bent laminations. Of these four glues urea resin and resorcinol achieve the most rigid glue line when cured. There isn t one adhesive ideal for every application. Then put against the original form.
Because bent laminations are under constant stress they require glue that sets hard.