24 hours has passed since I edge glued a test piece with Lee Valley’s Cod fish glue.
I must admit I was nervous that it would fail because I thinned it. I tried squeezing it in my vice and I think I may have buggered my vice, it’s now making some clicking sound. I changed the strategy and placed the panel flat in the vice and got some multi grips. Finally I managed to break it and it was no where near the glue line as you can see in the picture below. Also notice in the second picture that it’s virtually impossible to spot the glue line.
I think the results speak for itself. Fish glue is truly as good as any PVA on the market strength wise however, it does take a full 24 hours to fully cure and I don’t think that in truth is any different to any other PVA on the market.
I am also of the opinion that instrument makers who have not had much success with it either, used an inferior version or didn’t thin it and therefore the glue had lumps. Lumps will not allow a join to completely seat itself and also the glue won’t be absorbed by the timber.