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#287346 - 12/15/17 06:45 PM Baking soda and super glue epoxy
lupacexi Offline
Stranger

Registered: 09/04/17
Posts: 2
While searching for something on the internet I found what looked to be promising....a product called Q Bond (standard disclaimer). While reading about it, I read that something similar to it was a DIY version-

Basically it called for sprinkling baking soda onto the the parts to be joined and dropping the superglue onto it. Things I read described a cement like bond within 15 seconds that was as hard as 'the original' piece you were fixing. Many people described it as astounding. I haven't used it (but readily admit I'm looking for something broken to fix). Anyone have any experience? Suggestions? Tips?

You can easily find it on you tube.
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#287368 - 12/16/17 03:15 PM Re: Baking soda and super glue epoxy [Re: lupacexi]
hikermor Online   content
Geezer in Chief
Geezer

Registered: 08/26/06
Posts: 6531
Loc: southern Cal
What does the baking powder accomplish? Super glue hardens up in about 15 seconds and is pretty tough....
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#287371 - 12/16/17 04:27 PM Re: Baking soda and super glue epoxy [Re: hikermor]
M_a_x Offline
Old Hand

Registered: 08/16/02
Posts: 1017
Loc: Germany
Baking soda contains water and will accelerate hardening by providing new seeds for the polymerisation. That is very likely to reduce the strength for the bond (shorter chains and weak points due to the particles). It also helps to bridge larger gaps as it prevents the glue from flowing out of the gap.
The best case scenario would be a bond that is a little weaker than super glue.
Glues that are meant to be accelerated usually come with a table that provides info about the loss of strength due to the accelaration.
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#287387 - 12/17/17 02:02 AM Re: Baking soda and super glue epoxy [Re: M_a_x]
GoatRider Offline
Old Hand

Registered: 08/28/04
Posts: 823
Loc: Maple Grove, MN
Originally Posted By: M_a_x
Baking soda contains water and will accelerate hardening by providing new seeds for the polymerisation. That is very likely to reduce the strength for the bond (shorter chains and weak points due to the particles). It also helps to bridge larger gaps as it prevents the glue from flowing out of the gap.
The best case scenario would be a bond that is a little weaker than super glue.
Glues that are meant to be accelerated usually come with a table that provides info about the loss of strength due to the accelaration.


I heard about the baking soda trick a long time ago, and the same rebuttal.
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#287388 - 12/17/17 02:55 AM Re: Baking soda and super glue epoxy [Re: lupacexi]
dougwalkabout Offline
Crazy Canuck
Carpal Tunnel

Registered: 02/03/07
Posts: 2704
Loc: Alberta, Canada
A guitar tech told me about this trick, to be used when fastening the nut in place on a guitar (that wee slab of notched, fake ivory/plastic that holds the strings near the tuning heads).

The thing is, you want the option to remove and replace the nut if it is ever damaged or you want to upgrade to fossilized bone or synthetic ivory etc. It's best if it stays in place while you are changing strings, but otherwise it's held there by tension. So, a little "weakened" superglue tacks it in place so it doesn't shift around, but you can pop it out sideways with a length of hardwood and small hammer, no problem.


Edited by dougwalkabout (12/17/17 02:56 AM)

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#287393 - 12/17/17 01:43 PM Re: Baking soda and super glue epoxy [Re: GoatRider]
M_a_x Offline
Old Hand

Registered: 08/16/02
Posts: 1017
Loc: Germany
Itīs more a caveat than a rebuttal. Using the baking soda will affect the properties of the bond. The effect can be desired (dougwalkabout gave an excellent example). If itīs not, it may be better to use other alternatives. If itīs relavant for safety, it may be mandatory to use an alternative.
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#287455 - 12/21/17 05:25 AM Re: Baking soda and super glue epoxy [Re: M_a_x]
tangelo Offline
Stranger

Registered: 12/18/17
Posts: 5
Originally Posted By: M_a_x
It also helps to bridge larger gaps as it prevents the glue from flowing out of the gap.
The best case scenario would be a bond that is a little weaker than super glue.


Heard about this mixture before. That is my impression of its use.

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#287836 - 01/14/18 02:16 PM Re: Baking soda and super glue epoxy [Re: lupacexi]
lupacexi Offline
Stranger

Registered: 09/04/17
Posts: 2
w eek


Edited by lupacexi (01/14/18 02:17 PM)
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