View Full Version : Cyanoacrylate adhesive ... CA (
WoodMangler
03-12-2003, 08:54 AM
I was thinking.... always a scary thing...
Since Hot Shot CA glue is $9.99 through [link:www.rockler.com/ecom7/showdetl.cfm?offerings_id=1426&objectgroup_id=335&catid=63&DID=6|Rockler], and [link:www.woodcraft.com|Woodcraft] wants $10.99 a bottle, and [link:www.woodworkerssupply.com|Woodworkers Supply] wants $9.99 for Mosers CA glue... plus you have to add shipping...
Would it be worth my time, i.e. would people actually buy, if I sold the CA I use for $6.75 through my web site?
Or maybe $7.50 and free (yea, right) shipping?
Opinions please.... whaddya think?
Quartlow
03-12-2003, 09:25 AM
Any things worth as shot Marc. Even if all you did was sold it to the guys around here at first. Even if you got stuck with a few bottles your always going to us it.
I take it you found yourself a local supplier.
kNow what they say, nothing ventured, nothing gained
Sorry, but I'm going to answer your question with some other questions. ;)
What is your time worth to you? Is 7.50 (or whatever) going to give you enough of a profit on each bottle to make it worth the time and effort? Remember to include things like web-site expenses, mailing materials & packaging, and other expenses in your overhead. If you can do that and can still make a fair profit on each bottle, then go for it.
If you just lucked into a few cases and rock-bottom prices and want to spread the wealth to a limited number of people (i.e. this forum) then your needs, expenses, and break even points will be different.
On the other hand, you've recently posted your experiences with Mikes Workshop. He runs a decent business with a small scope of inventory (blades), by offering fair prices for good products.
I've never used CA glues on woodworking projects. I've heard good things about them, but I'm hesitant to spend 10 +/- on something, sight unseen. A 30% savings sounds good to me :D
As an occasional hobbiest, I doubt I'd be a huge customer, but I'd be interested in hearing what you decide.
Sawduster
03-12-2003, 09:50 AM
I'd go for it.
DaveZ
03-12-2003, 11:10 AM
Yup, if you're building a better mouse trap I'd beat a path to your door :)
Quartlow
03-12-2003, 04:38 PM
>Yup, if you're building a better mouse trap I'd beat a path
>to your door :)
Dave he's selling glue,,not building mouse traps!!:+ :+ :+ :+
Keystone
03-12-2003, 04:45 PM
Marc
I'll buy the stuff from you just because it's you selling it and not some big Corp!
WoodMangler
03-12-2003, 05:16 PM
Hey! Thanks!!
I've gone ahead and stuck a page on my site... guess we'll see eh? :)
Sonny Edmonds
03-12-2003, 05:33 PM
Right on! Glue man Marc!
Nothing ventured, nothing gained.... :7
:D
Sonny Edmonds
"Precision Firewood Specialist"
[link:home.earthlink.net/~sonnypie/ | Sonny's Shop Pages]
God Bless America !
One Nation Under God! Or you can bite my A$$ and just leave!
ASLNROX
03-12-2003, 05:34 PM
Marc,
I have never used the stuff much, but if I were to buy, I would rather you got the money as Ken said!
But, I do have a question. It used to be that the 1/2 life bond for this stuff was about 3 or 4 months. Have they changed the compound or does this not equate when gluing up wood fibers?
Inquiring minds want to know!
Blessings,
--Mark
[link:home.earthlink.net/~maspaulding/ | Mark's Garage Shop]
Sonny Edmonds
03-12-2003, 05:37 PM
Chase them through a pan of it and in a few seconds their stuck to something.... Muh, ha, ha, ha, ha.... :7
Or glue their bung shut and watch them puff up and pop. :o
:D
Sonny Edmonds
"Precision Firewood Specialist"
[link:home.earthlink.net/~sonnypie/ | Sonny's Shop Pages]
God Bless America !
One Nation Under God! Or you can bite my A$$ and just leave!
WoodMangler
03-12-2003, 05:45 PM
Every info sheet I've ever read said the shelf life is 1 year... double that if you keep it frozen...
Here's some other facts...
Base Chemical - Ethyl cyanoacrylate
Color - Clear transparent liquid
Flashpoint - 185°F (85°C)
Viscosity - 30-70 cps
Typical Gap - 0.004 inches
Vapor Pressure, mm HG @ 70°C 10
Specific Gravity, @ 25°F / -4°C 1.06
Refractive Index, n20C/D +/-0.03 1.45
Cured State
Melting Point 365°F (185°C)
Softening Point 306°F (153°C)
Heat Distortion 250°F (121°C)
Glass Transition 42°F (172°C)
Volume Shrinkage 13%
Rockwell Hardness 74 M
Cured Temperature Range -65°F to 180°F
(-54°C to 82°C)
Outgassing, 10-6 mmHG, 72°F 0
Elongation <2%
Dielectric Constant 3.98
Volume Reactivity 8.6 x 10-10 ohm-cm
Strength Data
Impact, ft-lbs, ASTM-950 7-10
Tensile, steel, psi, ASTM-D2095 4700
Tensile, shear, psi, ASTM-D1002 Steel 2800
Aluminum 1600
ABS665*
Nylon850*
Rigid PVC700*
SBR85*
EPDM100
I have no idea what most of that means... :)
Sonny Edmonds
03-12-2003, 05:46 PM
The yellow bottled Loc Tite that I believe Jerry is using (404 adheisive) is made to splice O rings with.
Now if it had a "half life" of 3-4 MONTHS, well there would be a whole buncha leakin going on.
I have never heard of a "half life to this stuff, before now.
We use the 404 to make the huge O rings we use in power transformers. They have to hold up to deep vacuum as well as pressure.
:D
Sonny Edmonds
"Precision Firewood Specialist"
[link:home.earthlink.net/~sonnypie/ | Sonny's Shop Pages]
God Bless America !
One Nation Under God! Or you can bite my A$$ and just leave!
WoodMangler
03-12-2003, 05:47 PM
Bahahha!!... OH!... uhhh, err... (ahem)
I meant "ewwwww!" ;)
Bob Hobbs
03-14-2003, 07:23 PM
Marc
I have heard of CA glue mostly in conjunction with wood turning. Does it have other applications? How do you apply it? Has somebody already explained this? (I never can get the &^&%& search engine to find anyhting--help!)
I'm interested because I think I want to turn glued up pieces of Baltic Birch plywood...
--Bob H
WoodMangler
03-15-2003, 04:41 AM
I use CA for lots of things... but I wouldn't use it for gluing up pieces of plywood... I'd use yellow glue for that... white glue if the glue up was complicated and I needed more open time.
I use CA for small box joints, for holding a turning to a waste block, repairs to cracks in turnings, as a clamp when makings jigs, etc., and I even use it in lieu of a brad nail to hols small moldings, etc. in place while the yellow glue dries...
I find it's a multi-purpose shop aid really.
I haven't tried it yet, but CA is a favorite finish for some of the woodturners here...
rrich
03-17-2003, 12:39 AM
Marc,
I can help a bit.
Tensile strength is related to pulling apart by pulling. Glue two nails together by their heads. Pulling them apart without bending is this number. (a.k.a. Modulus of streach ??? Too many years out of school to be sure of the term.)
The shear strength is pressure applied perpendicular to the glue joint. (a.k.a. Modulus of shear ???) Similar to pulling a lap joint apart. It is interesting to note that the numbers based upon the material type indicate that the more flexible the material the weaker the joint. This reflects the performance of CA in real life.
When the ONLY CA was Eastman 910 and about $40 an ounce, it would keep in the freezer for 5 years or so. The trick was to allow the CA glue to gradually warm to room temperature before use. I would let it sit on the counter top for an hour or so before use.
IMHO, using CA glues in woodworking may be good for non stressed applications like gluing a chip out back in place. I don't think that I would attempt to use a CA glue for joints.
Rich
WoodMangler
03-17-2003, 09:42 AM
"I don't think that I would attempt to use a CA glue for joints."
Really depends on which joint, and it's use you're talking about.
A mitered frame?... No way!
A box joint on a small jewelry box?... Perfect... no adhesive better!
The small joinery problems we encounter where there's just not enough glued surface area for yellow glue to work, are often glued well with CA.
Thanks for the explanation BTW... You made it easy to understand :)