Yet another PC question

The water based PC pressure glues very well: I glued the lid on a jar of the stuff and CAN'T get it off! Does the oil based PC do the same thing? If so, would it work for gluing plywood doublers to the fuselage? Paint them with PC, put them together under pressure. Lighter than epoxy, easier to apply???

I am not going to give you an "expert's" reply, just some thoughts and comments. It may work to glue doublers on...but. I started building two Mustunts once at the same time. Cut out all the parts, etc. Started assembling them as partial "kits". I decided to try different techniques to see what worked best. One set of fuselage doublers were assembled with epoxy which "cures". The other set was done with yellow glue that "dries". That which "cured" remained flat and true. That which "dried" curled. Not good.

As to weight, if you apply the epoxy to the plywood side only (less soaking in) and then squeegee it off with a notched piece of plywood, you will leave it slightly "wet" and with little ribbons only. Very light. Weight here is not a problem. The epoxy method thus remains my method of choice. Oh, you can use finishing resin epoxy for this or any other thin epoxy to make sure you don't get it too heavy.

>The water based PC pressure glues very well: I glued the lid
>on a jar of the stuff and CAN'T get it off! Does the oil
>based PC do the same thing? If so, would it work for gluing
>plywood doublers to the fuselage? Paint them with PC, put
>them together under pressure. Lighter than epoxy, easier to
>apply???

I like Polyurethane glue for doublers.

I use Titebond.

Hi Brad,
I had the opportunity to inspect the doubler/fuse side joint several years after they were applied with titebond.(yep, the old unplanned contact with Mother Earth) In the center of the area, the glue had never fully dried. Never had a problem, but it sure surprised me!
Bill <><