Bubbles in sinew

Jura From Underhill · Post by **Jura From Underhill** » Tue Jan 13, 2015 4:11 pm

Hi, in sinew layer I discovered bubbles. I soak sinew in glue and then i squeezed the excess glue from sinew with help my fingers. Any ideat how did it happen?

mikekeswick · Post by **mikekeswick** » Wed Jan 14, 2015 8:09 am

They have to have been left there when you laid the sinew down. When you put a bundle on the bow lay just the tip of one end down and then use a finger behind the bundle to 'follow' it as you lay the rest down, pressing it to the core to expel any bubbles. Don't put the bundle down as a whole and then press it.
This is just what works for me.
You could try injecting a little thin, hot glue into the bubbles?

Jura From Underhill · Post by **Jura From Underhill** » Sat Jan 17, 2015 7:23 pm

It is work of my friend, but i have similar problem. It look like little bubbles in glue, not between layers. I quess then bubbles are formed during mixing glue or when combing sinew.

Bj?rn Sofeit · Post by **Bj?rn Sofeit** » Wed Jan 21, 2015 7:09 pm

Maybe you should let the sinew longer in the glue, so that the bubbles set. It takes a while with thicker glue.

Once it's dry, it's almost impossible to penetrate the sinew with a syringe, unless it's superficial.

J Menna · Post by **J Menna** » Wed Feb 11, 2015 10:03 am

Was sinew in water few hours before gluing?

I remember, I had little bit a same kind of surface in my sinewbackings years ago. That was time when I didnt kept sinewbundles in water before gluing them. Glue penetrate/go all over, better in to sinew if those are wet.