ORIGINAL: opjose
Canopy glue is nothing more than ''white'' or ''Elmer's'' glue.
There is - ABSOLUTELY NO DIFFERENCE IN THE FORMULATION - only the price!
So you can use White or Elmer's glue instead.
The key is to lightly roughen up the surfaces with sandpaper, so the glue can adhere. It will not adhere to completely shiny surfaces.
This type of glue is used, so that the canopy can later be removed if desired without damaging the plane.
I used RC56 for years thinking it was special stuff till I was tipped off to this fact. Elmer's is absolutely as good as any 'special' and more expensive canopy glue. Cheap and it works great. Cleans up with water. Much better, in my opinion than silicon, epoxy, or CA that will cloud your canopy.