Author Topic: Super glue generic activator  (Read 8305 times)

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tecker

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Super glue generic activator
« on: March 30, 2008, 08:07:20 PM »
I read the bottle of cyanoacrylate glue activator and noticed it contains isopropyl alcohol so I tried some 90% isopropyl and that works well .If you already new that disregard .
« Last Edit: March 30, 2008, 08:07:20 PM by (unknown) »

Chagrin

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Re: Super glue generic activator
« Reply #1 on: March 30, 2008, 08:37:55 PM »
Alcohol and bases (like baking soda) work as accelerators. The glue contains a weak acid that prevents it from hardening.
« Last Edit: March 30, 2008, 08:37:55 PM by Chagrin »

wdyasq

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Re: Super glue generic activator
« Reply #2 on: March 30, 2008, 09:13:32 PM »
Ammonium, baking soda, calcium carbonate ... as Chagrin stated - almost anything basic will set the worthless crud off.


Ron

« Last Edit: March 30, 2008, 09:13:32 PM by wdyasq »
"I like the Honey, but kill the bees"

electrondady1

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Re: Super glue generic activator
« Reply #3 on: March 31, 2008, 05:31:50 AM »
what would be a good solvent?

acetone?

i need to reconfigure a bunch of stacked h.d. mags.
« Last Edit: March 31, 2008, 05:31:50 AM by electrondady1 »

Capt Slog

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Re: Super glue generic activator
« Reply #4 on: March 31, 2008, 06:30:41 AM »
As will water.


The activator mentioned above was 90% IPA, the other 10% is most likely water.

« Last Edit: March 31, 2008, 06:30:41 AM by Capt Slog »

tecker

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Re: Super glue generic activator
« Reply #5 on: March 31, 2008, 07:03:48 AM »
 A drop of 90% from a coffee stir seems to work well  It goes to work fast and evaporates quick . A good solvent I haven't found frankly .
« Last Edit: March 31, 2008, 07:03:48 AM by tecker »

DanG

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Re: Super glue generic activator
« Reply #6 on: March 31, 2008, 08:34:58 AM »
When Super Glue was first introduced there was no solvent pre-designed to release it and many folks had to live with various parts of their bodies cemented to equally various other bits until the skin would release on its own. Acetone became a mandatory solvent for super-glues when manufacturers reformulated the glue since there were so many Emergency Room visits.
« Last Edit: March 31, 2008, 08:34:58 AM by DanG »

Ungrounded Lightning Rod

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Re: Super glue generic activator
« Reply #7 on: March 31, 2008, 10:00:45 PM »
It's interesting how its adhesive properties were discovered.


They were testing its refractive index.


The device used consists of a pair of glass prisims with a sample of the material in question between them.  A beam of light shines through one of the prisms and the prisms are rotated so it strikes the prism/sample interface at various angles, starting with a very glancing angle.  If the refractive index of the sample is sufficiently less than that of the prism, the light beam will experience total internal reflection, because penetrating the interface would bend it MORE than parallel to the surface, so it can't propagate away.


As the angle between the light and the surface increases it eventually reaches and passes the angle where the light would emerge and run parallel to the surface and continues with angles where the light would leave the prism at some angle and penertate the sample.  The transition is very abrupt.


If the sample is transparent the light passes through it into the second prisim (and the degree of transparency can also be measured.)  If the sample is opaque the light penetrates and is absorbed.  (This is how you measure things like the refractive index of ketchup.)  In either case the reflection of the light stops abruptly at some angle, and this angle gives you the refractive index (relative to that of the glass of the prisim).


So they tested it in this very expensive precision instrument.


Then they tried to get the prisms apart to clean them for the next experiment...

« Last Edit: March 31, 2008, 10:00:45 PM by Ungrounded Lightning Rod »