Gelatin based hide glue

[feral]

hey All, I have been working on a small osage bow. 1220mm or 48 inches. I processed a stack of Roo tendons to back it and tried to make hide glue from a gelatin. So I followed what seemed to be standard procedure but it didn't set hard after a couple of days. So I've done something wrong.
Do I leave it and see?
Heat it up?
Pull it off? 
Would the tendons be no good?
Cheers

[Eric Krewson]

I guess the main question is "what kind of gelatin" did you use? I have only use Knox gelatin from the grocery store which always set up with no problems.

As for reusing the sinew, I don't know, perhaps the gelatin will wash off of it in warm water.

[feral]

Well, It was from the store. I don't think we get Knox in Oz.
I heated up a blob leftover yesterday, still soft.
It's been 3 days so I assume there should be some sign it's working by now.
I thought about trying to wash it off.
I still have some roo left but only for one layer.
Just have to try it I suppose.
Thanks

[mullet]

If it is animal gelatin then you should be able to wash it off with warm water and a little detergent. I have soaked sinew that was glued in Knox gelatin and once soften have washed it off.

[GlisGlis]

is that possible that you over heated it?

[feral]

I could have overheated it I suppose. But it just washed off without any issues. I redid it with titebond.

Though, I was at the shops today and in the discount supermarket (Aldi, in Australia) I found fish based collagen powder.
Make your own fish glue with beautiful refreshing scents!
https://www.aldi.com.au/special-buys-wed-23-october-c8/wednesday-detail-wk43/ps/p/life-botanics-collagen-powder-sachets-30-x-3g-2/

[GlisGlis]

And you get a beauty treatment too 

Marine collagen is clinically proven to smooth fine lines and wrinkles, increase skin firmness and enhance skin elasticity

[feral]

I noticed that they had another type. Unscented and 100% fish collagen. But the box was $30. If it goes down I might get one and see.