Primitive Archer
Main Discussion Area => Bows => Topic started by: dragonman on February 10, 2009, 05:28:50 pm
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I'm in the process of my first sinew backing, everything is ready but the glue! It's been in a slow cooker for the last 10 hours, but I'm really unsure of the consistency. How much dry rawhide scraps to how much water? in other words what concentration of hide to water should I use? mine looks really thin , dont thik I used enough hide (or too much water)
Also I heard that you could put the hide scraps in a food liquidiser, ? I did this , but now it looks like it is chopped too small and I want be able to filter it ,it looks really cloudy, Should I start again?
I would really appreciate some help, I cant find the info anywhere ???
by the way I used rawhide dog chews, does anyone know if these will work??
I've done lots of searches of previous posts ,but still cant find out any detailed info on this, i heard it was in the bulletin of primitive tech. but could'nt find it there either.
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Never made hide glue, but I think you can let it stand for a while (after the cooking process) and the heavy stuff will settle to the bottom and the fat will rise to the top. What you want is the stuff in the middle.
I don't think it matters too much if the glue is cloudy, unless you are using it for a binder for paint or stain.
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It will remain really thin as long as it is on the warmer. You might want to get it a little warmer to dissolve, the warmer is designed to keep it thin not to make hide glue. Keep it under 170*. If you want to know if it is thick enough, take it off the heat for a while and see if it turns to jello. Justin
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I'm thinking to start again, I get the feeling these dog chews dont make good glue? I'm gonna use some local deer hide I got last year instead. but I would still be very intereted in some imput if folks have the time, I,m really keen to finish this bow, I will post some pics when its done
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Justin, Ive hade this glue at 150 degrees for 11 hrs now, should it be hotter?
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Yuck! No offense, but it sounds like a whole bunch of work! I bet your house stinks to high heaven as well. I guess I'm not a purest, but knox gelatin or TB bottled hide glue is the route I go. It just seems like a better way to spend time!
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adb, no offense but that is what most people say to me about making bows. I have better things to do with my time. I enjoy making my glue just like I enjoy making my bows, arrows and points.
Dragonman, cutting the hide into strips or small pieces will make it a little faster. Pour water into the pot and bring it to a low boil or simmer. When it foams and froths for a couple of hours it is done. You might have to add a little more water to the mix to keep from getting to dry. Strain the whole mix through a piece of cloth. You can freeze the left overs or you can dry and grind it. If you freeze them you just warm them back up. If you dry and grind you just add warm water when you are ready to use it.
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I just made a big batch with unflavored rawhide dog chews Sunday .It worked out great ,throw in a pinch of lye or a bit of hardwood ashes to bind to the fats near the end.To bind to the fats and settle them to the bottom (thanks Bob )
Ralph
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Well... you guys have fun!! ;D
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Used dog chews a few times to make hide glue and its turned out fine each time. You want to use the lowest heat possible to get the collagen to dissolve it makes for a stronger glue and like Ralph said throw in a pinch of lye at the end then scoop out the clotted fats. The smaller the bits of hide are the faster they will dissolve. Its entirely possible that it may take 10 hours based on the size of the hide.
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O almost forgot as far as concentration of water when boiling it you want to keep plenty of water in it to prevent overheating the hide. Keep the pot pretty full with water until all the chunks are dissolved and then just lets the water steam off until you get a liquid glue mixture. When you pull a spoon or similar item up from it you should have a strand of the mixture that pulls up with it letting you know its thick enough.
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Who says Hide Glue Stinks??? Don't smell like a Slipping Hide does thats for sure!!! In fact...I really like the Smell of it....and it don't taste bad either....but then I don't mind chewing Sinew for wrapping Arrows or BowTips either....I even chew the Sinew and add glue in my Mouth and mix it good....then wrap the Tips with it.....you grow accustomed to the stuff!!!
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Here is a picture .
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Wheres the Katchup!!!! :P
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............. DINNER !! COME AN GET IT !!!!" ;D
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Ahh, rawhide dumplings. What a palate tempter.
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Looks like Chitlins!!!
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thanks guys for the imput and appetizing pictures, whats with the negativity Adb ? whats the point of doing anything if you look at things like that, why not just buy a bow as well to save clearing up the wood chippings? and the glue doesnt actually smell bad, hardly smells at all actually, I did taste it and it tastes ok too, pure prortein so it must be nutricous!!!
Isn't that the real point of making wooden bows? to empower ourselves by doing things our self?' FG bows are generally cheap and efficient so why bother making, why go only half way and not make the glue
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One more picture ,for all you connoisseurs .You can see some frost from the freezer.
Ralph
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thanks guys for the imput and appetizing pictures, whats with the negativity Adb ? whats the point of doing anything if you look at things like that, why not just buy a bow as well to save clearing up the wood chippings? and the glue doesnt actually smell bad, hardly smells at all actually, I did taste it and it tastes ok too, pure prortein so it must be nutricous!!!
Isn't that the real point of making wooden bows? to empower ourselves by doing things our self?' FG bows are generally cheap and efficient so why bother making, why go only half way and not make the glue
Not negative... I guess i just prefer the ease of prepared hide glue. To be perfectly honest, I don't use hide glue much. I prefer a more waterproof adhesive for most of my applications. To each his own, and like I said, you guys have fun with making your glue. ;D
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no problemo Adb, we've all got our preferences and diferent ways, its actually amazing how many people make diferent types of hide glue work by making it in diferent ways!. Some say boil some say dont and nobody seems to know any optimum proportions. Some say liquid hide glue is useless , others seem to make it work and I'm still not sure how thick to make my glue, I guess experimentation will be called for
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You have to experiment .It's cooking after all .
It can't be to thin or it won't gell .Yet it needs to have plenty of water while it's dissolving the hide. And stir it often .You don't want to burn any chunks of hide on the pot's bottom .
For me that means the mixture is pretty thin while the hide is still kinda solid .Then after it is all dissolved ,I turn down the heat some and reduce my stock (never boiling). Still stirring even more often now.When it is thick enough that it clings to the stirrer ,like syrup kinda, It's time to pour it into a pan to gell.
Do the same thing for fish swim bladders.
Ralph
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no matter how long it cooks it still drips off the stirrer fairly quickly, maybe i used too much water?
also, what about plumping and degreasing with lye? I've heard different things, how necesarry is this? in the TBB on glue making it says neutralize the lye with a mild acid like vinegar, but vinegar is an alkali not an acid
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Vinegar is an acid! Lye is basic.
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You're right PatB, thanks for putting me right( I just looked it up) I've obviously been in illusion about the nature of vinegar my whole life
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Boil it down to thin it. Let it cool to see if it will gel. Justin
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Justin, you say boil it down to thin it? would'nt that thicken it?
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I never use vinegar , the lye (if you don't use to much) should all bind with fats ,and not remain in the poured glue.
Take the pot off the heat for a few minutes and check the thickness ,it can remain more liquid on the heat . Especially if the heat is kinda high. I like using pretty low heat , But you will come to a way of making glue that works for you.
Ralph
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Justin, you say boil it down to thin it? would'nt that thicken it?
OOPS I meant to say boil it down to reduce it.
First things first. Cool it and see if it gels. It will remain water thin as long as it is hot. You could also glue something with it and see what happens. I think you will be surprised that it is already glue. Justin
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thanks alot guys for the help, I'm gonna just test out what i've made now and see what happens, heard it takes 6 days to dry properly is that right??
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It gels and glues almost instantly. It will be wet still and can take weeks to fully cure. You will want to avoid stressing the bow during this time.