Gluing super glue to ... super glue

Yup, my CA doesn't stick quickly to cured CA either. Usually I'll try to scrape the old CA first, then attach the part again.

Hmmmm, My curiousity is peaked so I looked at a box of baking soda, the only ingredient it listed was sodium bicarbonate.......there the same.

QUOTE: Originally posted by tominator oh, on there he says to use baking soda as an accelerant, not bi carb soda... i think both r the same, but could anyone clarify if baking soda is the same as bi carb soda?? thanks!!

As far as I know those two are the same stuff.

oh, on there he says to use baking soda as an accelerant, not bi carb soda...
i think both r the same, but could anyone clarify if baking soda is the same as bi carb soda??

thanks!!

hey i stumbled across this site last nite, and found this article...
http://www.ipmsstockholm.org/magazine/2004/10/stuff_eng_tech_ca_glue.htm
may shed some light on ur prob...
i was real tired when i read it, but theres some good info in there bout CA...

I've heard different stories from many folks and some say that CA will not adhere well to cured CA and some say there's no problem at all.

I myself have had mixed results. Back when my Dad and I built flying models made of balsa and tissue... if a glue joint had to be repaired the best results were had if the old CA was removed. If it was not removed, we noticed that the joint was more prone to failure.

In the end, though, when all else fails... ask an 'expert'.

I was able to talk to a rep for a hobby adhesive company and although I don't recall all of what he said I do remember that the adhesive performance of CA for different materials and surfaces has something to do with the purity of the CA and that, in general, uncured CA does not bond all that well to cured CA.


Fade to Black...

hey ive come across this prob recently.... the ca would just not cure....but the wierd thing is is that i used the same bottle of ca last night and it worked fine.... must be the weather ;)
try sprinkling some bi carb soda on the join, thatll make it cure rught away

I never have a problem with gluing CA to existing CA. Perhaps your glue is past it's prime. I'd try a new bottle but if that fails I'd buy some accelerator to kick your CA's cure.

Is it not sticking or not curing? As I understand it, superglue creates a physical bond through a chemical reaction which is why it can be used with so many substances. If it's taking too long, which couiold be influenced by a number of factors, try getting some accelerator, such as Zip Kicker at your LHS.