Primitive Archer

Main Discussion Area => Bows => Topic started by: Scaramouche on November 20, 2012, 07:03:08 pm

Title: This is surprising...
Post by: Scaramouche on November 20, 2012, 07:03:08 pm

So I've got a light-weight, pyramid-style, red oak board bow I backed with Knox gelatine hide glue and brown paper bag. When the first course dried, I discovered that one limb had been pulled slightly into reflex.  :o

Anyone else ever seen this with brown paper bag and hide glue?

Title: Re: This is surprising...
Post by: Bryce on November 20, 2012, 07:11:25 pm

The glue does shrink.

Title: Re: This is surprising...
Post by: blackhawk on November 20, 2012, 07:14:08 pm

The hide glue alone can pull a bow into some reflex as it shrinks...and this is one of the reasons why hide glue is better to use with sinew than titebond ..(not trying to start a war..lol)

Title: Re: This is surprising...
Post by: Scaramouche on November 20, 2012, 07:14:27 pm

I guess when I thought of a backing causing reflex, I assumed it was only sinew doing that.

Can this actually add draw weight?