very noob

[hunghing]

hi im very noob i acidentally got super glue on my front bonnet
is there any way 2 get it off without damage?

[xntrik]

leave it in the sun is a quick idea.

[Limbo]

most things that i know of that would get it out would eat the paint

[diffuzn]

Funnyly enough superglue companys have superglue removers!

Ring up the company pay for the remover because they have some that arn't toxic and whatever

ALSO acetone works however chances if you arn't careful it could dissolve the clearcoat.

[Int3gra-T]

hi im very noob i acidentally got super glue on my front bonnet
is there any way 2 get it off without damage?

LOL!!

[aaronng]

Just soak the area in water (or with a wet tissue). Alternatively, wait til a rainy day and just after the rain stops, go out and remove the superglue using a claybar. Superglue has 2 weaknesses. Acetone (which damages paint) and water.

[diffuzn]

superglue bonds to water mollecules

[aaronng]

superglue bonds to water mollecules

No it doesn't. If it did, then the bond would be weakened after the water evaporated away. :)
It uses water to cure. Put more water on it and it weakens and the bond becomes brittle. Leave it soaking long enough and you can wipe it off with paint cleaner on a cloth. Personally, I'd soak it or wait for a rainy day, and then clay the glue off.

[diffuzn]

no i never said it was a water based glue... When i said it bonds to water mollecules i mean that it simply uses the hydroxyl ions that exist in water mollecules. I know for a fact that water won't have an effect on super glue...
Depending on the brand this guy spilt on the car ethyl 2-cyanoacrylate or methyl 2-cyanoacrylate is the active ingredient to the glue. In which neither of these are affected by water at all. to make it brittle you could try lowering the temperature but i doubt hes willing to put some dry ice on his car LoL!

[aaronng]

no i never said it was a water based glue... When i said it bonds to water mollecules i mean that it simply uses the hydroxyl ions that exist in water mollecules. I know for a fact that water won't have an effect on super glue...
Using hydroxyl ions to initiate polymerisation is a totally different meaning to "bonding to water molecules". :)



Depending on the brand this guy spilt on the car ethyl 2-cyanoacrylate or methyl 2-cyanoacrylate is the active ingredient to the glue. In which neither of these are affected by water at all. to make it brittle you could try lowering the temperature but i doubt hes willing to put some dry ice on his car LoL!
Doesn't matter if it is a methyl or ethyl 2-cyanoacylate. Both are similar, only the alkyl substitute is different. Many patents and papers in the use of cyanoacrylates for sutures describe the breaking down of the polymer chain through hydrolytic scission, which requires excess hydroxyl ions and water.

Even Selleys themselves say that supa glue is only water resistant and shouldn't be used for surfaces that are continually wet. http://www.selleys.com.au/Selleys-Quick-Fix-Liquid/default.aspx

[xntrik]

where do you get claybars from, i've always been interested in this 'magic' bar.

[aaronng]

where do you get claybars from, i've always been interested in this 'magic' bar.

The easiest way is from autobarn or supercheap auto under the Meguiar's or Mothers brand. This is the most expensive way because they give you a half-sized claybar and a bottle of quick detailer to use as lube. I buy mine online from waxit.com.au or get them in small tubs from Meguiar's HQ in Homebush.

[diffuzn]

Doesn't matter if it is a methyl or ethyl 2-cyanoacylate. Both are similar, only the alkyl substitute is different. Many patents and papers in the use of cyanoacrylates for sutures describe the breaking down of the polymer chain through hydrolytic scission, which requires excess hydroxyl ions and water.
http://www.selleys.com.au/Selleys-Quick-Fix-Liquid/default.aspx

I'm quite aware of the differences in that sentence! haha

but i'm also aware of the differences between the hardware superglue and the medical kind, dermabond i think its called correct me? I'm pretty sure the kind of seal the medical glues create are permeable so that the wounds can breathe. Of course you'd hear stories of people using superglue on superficial cuts! then again the bonds are attached to dead skin anyway so its not much of a problem.

Hm anyway TRUE that they are both cyanoacrylates...

BUT the properties of the polymer change as the size of the alkyl used changes. That’s why hardware superglue uses ethyl and methyl alkyls whereas the medical glues use n-butyl n-octyl and isobutyl esthers. As the alkyl group size increases the chance of it being hydrolytically degenerated increases.

I know the website may say keep away from wet surfaces but I simply think they are looking at the wear and tear perspective. Even still they are merely talking about what could wear out the seal between 2 objects being held together by glue, not the actual seal between the glue and the object. To actually remove the glue from the object which this guy wants to do, he’d need acetone or another solvent like nitromethane. No idea where he would get hold of nitromethane though haha

[thaaznboi]

i got superglue on my drivers door awhile back...i just left it for bout 3 months thru 3 rain and heat n it faded a bit...didn't look as bad n i wanted to get rid of it completly so i gave it a cut n polish n DONE! just like it was never there. thats just my own experince.

[aaronng]

BUT the properties of the polymer change as the size of the alkyl used changes. That’s why hardware superglue uses ethyl and methyl alkyls whereas the medical glues use n-butyl n-octyl and isobutyl esthers. As the alkyl group size increases the chance of it being hydrolytically degenerated increases.
The reason why they use butyl and octyl is because methyl and ethyl 2-cyanoacrylates are toxic to living tissue and causes necrosis when exposed for long durations.



Even still they are merely talking about what could wear out the seal between 2 objects being held together by glue, not the actual seal between the glue and the object.
To wear down the seal between 2 objects held together by the glue, that means one or both of the interfaces (object-glue, glue-object) are weakening. In the threadstarter's case, there is only one interface, which is also object-glue. If water exposure is able to weaken the seal that is protected between the 2 objects, then water would also be able to weaken the glue on the paint at an even quicker rate because the entire surface area of the glue is exposed to the water. As long as the surface of the dried glue is compromised, it will be easily removed using a claybar and paint cleaner.

An alternative is to mix acetone in water at 1:4 or 1:3 ratios and using it carefully with a soft cloth to soften the glue for removal using clay.

[diffuzn]

I guess this is where we agree to disagree. My point with the 2 objects being held together by glue is the glue to glue inteface would be possibly compromised because at that point structurally it would be weakest. i never said anything about the glue to surface interaction being compromised. Anywho prove me wrong by throwing superglue on your car and removing it with water and rain. i'd just acetone it.

oh and the necrosis caused is because of the non permeable nature of the glue killing the tissue cells.

[aaronng]

I guess this is where we agree to disagree. My point with the 2 objects being held together by glue is the glue to glue inteface would be possibly compromised because at that point structurally it would be weakest. i never said anything about the glue to surface interaction being compromised. Anywho prove me wrong by throwing superglue on your car and removing it with water and rain. i'd just acetone it.

oh and the necrosis caused is because of the non permeable nature of the glue killing the tissue cells.
Yeah, agree to disagree. :)
This discussion would be neverending this way.

Oh and you need to soak the superglue in water for at least a few hours. That's why I said to wait until after the rain. Throwing water on it wouldn't do anything to the glue. Covering it up with a wet tissue and keeping it wet for a few hours is essential.

Necrosis is caused by polymerised methyl 2-cyanoacrylate breaking down back to cyanoacrylate and formaldehyde. It's the formaldehyde that kills cells.

Well, back on topic. Was nice having this discussion. :thumbsup: