Woodcraft
Lesson: Hide Glue
Instructor:
Craftsecond Paric
July
25, 1998
Craftworks
Recently
rebuilt, this craftworks has an almost new appearance to it.
New work benches are arranged against the walls, a few new pieces
of work lay out on them. The center of the room is dominated
by two forges, almost any size piece of metal could be worked
from the heat of these over-sized forges. A small forge resides
in a corner, apparently for more delicate operations. It
is apparent from the new mortar that all the forges have been
rebuilt from the floor up. Near each forge are bins for
coal and odd pieces of metal. Above the center forges large
vent hoods draw great volumes of air out of the craftworks.
Over and around the Office door are hooks for displaying samples
of Smithcraft work, along with objects that may be for sale.
Sorted piles of reclaimed scrap metal lay against the back wall.
You
see Forge, Glass Furnace, Gemcrafter Scroll, and Flamethrower
Class here.
Obvious
exits:
Smith
Office Reception Hallway
Dralin
walks up from the Reception Hall.
Dralin
says, "Hello mr Paric sir."
Paric
smiles and glances up at the apprentice upon hearing his name.
"Yes...Dralin."
Dralin
says, "I'm just waiting for the next lesson."
Paric
chuckles and nods, "Well...it shouldn't be too much longer."
Melissa
walks up from the Reception Hall.
Melissa
says, "hi, " she mentions, absolutely bored "what's
up ?"
Paric
smiles, "If you want you can take a sit while we wait for
the rest of the apprentices."
Paric
smiles, "Then everyone can learn all about hide glues."
Dralin
says, "yes sir."
Dralin
sits down obediently.
Moving
around to the other side of the work bench, Paric smiles, "Hello
everyone. I take it that only the two of you will be here
today!"
Melissa
looks up, blankly, she sits down and gives a grin.
Paric
chuckles, "Good...then why don't we get started. In
case you don't know why you are here today. It is because
today we will be talking about hide glue." He grins
as the last words slip from his mouth.
Melissa
stands, she starts slinking towards the door, breath held <<
please don't let him see me, please don't let him see me,,, no
lesson, no learning, no !>>
Paric
frowns at Melissa. "Hmmm...oh Melissa, where are you
going?"
Melissa
grins big, being caught " Oh... um.... " she stutters,
and points to the door... " Out ?"
Paric
smiles and shakes his head pointing to the seat that she had
occupied. "Why don't you have a seat. You'll
probably find that this lecture will actually be helpful later
on..."
Melissa
frowns, slinking over, her plot deminished. She sits down, Dralin,
don't laugh.
Paric
smiles. "Okay...where were we...ah yes!"
"Hide
glue has been used since the beginning of woodcraft. Why?
" Paric queries with a smile and a brief pause.
"Because it is a simple, yet strong glue, that can,
if necessary, be reversed so that you can reassemble a joint."
Paric
continues speaking as he moves over to the end of the workbench
where several objects are sitting. "Today, you will
learn about how to make and apply hide glue."
Melissa
watches patiently.
"Okay,
can you tell me what hide glue is?" asks Paric with
a chuckle.
Melissa
grins "It's either glue that hides, or Glue made from hides,
or it's where the glue seamline is hidden
Dralin
says, "what she said."
Paric
chuckles and shakes his head. "Well, one out of three....
Hide glue is made from the hides and bones of animals.
And after an extensive washing, we come up with a gelatin that
is known as hide glue. The gelatin is dried to form granules
or 'pearls' which are odorless and vary in color from light amber
to dark brown."
Melissa
looks over her shoulder, when Paric isn't looking, she switches
her seat, beside Dralin, yeah, ! We get to torture each other
! :>
"To
make hide glue, you will need several things." Paric says
as his hand points to several objects on the benchtop."
"You
will need some hide glue, water, a double boiler, balance, brush
and a glass jar." Paric says pointing to each in turn.
From
Melissa's shoulder, Peridot sighs. Remaining curled up. She thinks
she's the only one listening
Melissa
looks to Paric, as her hand slips behind Dralin to tap
the opposite side of his shoulder. Then tries to look innocent.
Dralin
turns to Melissa, "yes?"
Paric
smiles and looks at each of the apprentices to make sure that
they are paying attention. "Hmmm...does everyone understand
this so far?"
Paric
smiles and awaits an answer in some form from the two apprentices.
Melissa
nods to Paric
Paric
smiles and looks over at Dralin, "Well..."
Dralin
says, "understood that perfectly sir."
Paric
smiles and nods.
Paric
picks up the balance and moves it to the front of the benchtop
so that everyone can see. "Okay...there are several
ratios of water to glue that you can use. I prefer to use
a three to one ratio, " he says a smile.
Melissa
nods and smiles, she leans back, leaning back still, uh-oh !
Falling back ! "ACK ! " she shrieks as she falls off
the seat
Paric
frowns and shakes his head and then turns back to where he had
left off.
Paric
picks up a small jar of water. "First weigh out the
water you will be using," he says as he places another jar
on the scale and proceeds to pour a small amount of water in
it. He looks at the gauge on the balance and then place
three small weights on the counter balance platform.
He removes the water and all but one of the weights from the
balance.
Dralin
says, "is that salt water or fresh water?"
Melissa
makes a whiny voice " Ouchy " she sits up, besides
her pride being bruised, she think she broke her tail end ;>
Paric
smiles at Dralin, "Actually...you should use fresh water.
We've pretty much removed most of the impurities from the gelatin
initially, we don't really want to add salt to the glue."
Paric
places another empty jar on the balance while looking at the
gauge. He then carefully starts to pour a small amount
of dark brown granules into it. When the gauge on the balance
appears to be even, Paric removes the jar and weight from the
balance. Moving the balance to another side of the workbench,
Paric continues, "Okay...now we have a proper ratio of three
parts water to one part hide glue granules."
"Now
we mix these two ingredients together, " Paric says grinning.
"And we make sure that all the granules are completely wet.
Once that is done, we will let it sit for about one to two hours
while the granules soak up the water."
Dralin
says, "k I'll be back then."
Dralin
starts walking to the door.
Paric
grins, "Okay...so who is up for a two hour break!"
Melissa
waves her hand and runs out,,, Peri screaming her protest !
Melissa
hugs Paric! Paric is hugged!
Melissa
walks down the wide stone staircase into the Reception Hallway.
Paric
grins, "Not a chance...as I've prepared some of this stuff
a little earlier today!" he says with a chuckle as he picks
up jar of the workbench containing some swollen, sticky granules.
Dralin
says, "you serious?"
You
paged Melissa with: From afar, Paric chuckles, "You don't
get off that easily..."
You
paged Melissa with: From afar, Paric grins, "I've made up
a previous batch....get back in here.."
Dralin
says, "sir, Melissa is gone"
Paric
smiles, "Hmmmm...well, I guess we'll wait for her to return
then."
You
sense that Melissa is looking for you in Reception Hallway (#2402).
She
pages, "meanie :P"
Melissa
walks up from the Reception Hall.
"Okay...as
you can see here..." says Paric smiling as he shows everyone
in the room the contents of the jar. "The granules
have absorbed all the water and are now almost 'jelly-like'.
At this point in time, we will put the jar in the double-boiler."
Dralin
thinks of putting Melissa in the boiler with it
Paric
walks over to a small double-boiler sitting on top of a
small metal tripod. Underneath the pot is a small glass
bottle with liquid in it, and descending into the bottle is a
small wick. The wick is lit and the flame licks up
on the bottom of the double boiler.
Naaja
has arrived.
Melissa
watches and gives a nod to Paric.
Paric
places the jar into the pot and watches it carefully, "The
secret is to not burn the glue." he says glancing over at
the apprentices.
"When
the glue is at the right temperature...between 130 to 140 degrees...you
are ready for gluing!" Paric looks back down at the
glue in the double-boiler, then back up to the apprentices.
"Okay...that should be ready in a few moments.
Now, hide glue has a fairly short open time compared to other
glues -- about one minute, therefore it is really important to
dry assemble the joints first."
Melissa
nods, understanding the importance of time in this
Paric
smiles, "Hide glue can't compensate for poor joinery, so
it is important that you carefully make sure that all the joints
fit. If the room is cold, it would probably be a good idea
that you warm it or the wood up first, otherwise the glue may
set to jelly before it has a chance to form the initial 'tack'
bond."
Paric
smiles, "The air should also be fairly dry as high humidity
can alter the glue's consistency and affect how it holds the
joints together."
Dralin
nods.
"As
you have less than a minute to apply hide glue and clamp the
joints in place, you may wish to break up large projects into
smaller assemblies. First brush the glue onto both joint
surfaces like so..." he says taking a brush and dipping
it into the hide glue, then brushes the glue onto the joint surface
of two pieces of wood.
"Then
you place the two sides together like so..." Paric says
joining the two ends with glue and picking up some clamps he
fixes them to the wood to keep the joint in place. "And
then place the clamps in place. You can clean
up any excesses of glue with a damp rag."
Paric
smiles, "Don't be to worried about it if a little hide glue
remains. It is stainable and has been used as a pore filler
for this very reason."
Paric
smiles, "Okay....so are there any questions?"
Dralin
says, "what's hide glue like after it dries?"
Dralin
says, "is it stretchy?"
Dralin
says, "or hard?"
Paric
smiles, "It is actually produces a fairly hard surface which
can take stains or even be used as a filler for very porous woods.
But it usually dries somewhat clearish or yellowish."
Paric
smiles at Dralin, "Hmmm, does that answer your question?"
Dralin
says, "yepp."
Dralin
makes a ball out of the glue and carves it into a diamond shape
Dralin
says, "I'm can use this for GemCraft class"
Paric
chuckles, "Okay...any other questions? Actually, it
can be used in gemcrafting, however, it is usually used in the
woodcraft specialty."
Melissa
hms "Are there any glues made for gems ?
Paric
smiles, "Hmmm...the hide glue could be used. However,
if it was to ever come in contact with water, it could be reversed.
The next time Journeywoman Moiraine is at the Smithcraft Hall,
we'll have to ask her that very question."
Melissa
nods solemnly.
Paric
smiles at the two apprentices, "Well, if neither of you
have any other questions, why don't we call it a day."
Dralin
says, "yes sir."
Paric
smiles and nods, "Then with that said, I'll see you all
in our next lesson."
Dralin
twiddles his thumbs
Paric
extinguishes the flamer under the boiler, then cleans up the
work area making sure that all of the materials are put away.
Smiling, he then heads out of the Craftworks.
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