Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: tool coatings removal
chemrox
International Hazard
*****




Posts: 2961
Registered: 18-1-2007
Location: UTM
Member Is Offline

Mood: LaGrangian

[*] posted on 3-9-2019 at 12:57
tool coatings removal


I'm trying to get the coatings and logos off some new hand tools made by Estwing. (I will call them next) The coating appears to be acrylic but not sure. Anyway, impervious to acetone and heptane. I tried dilute HCl on the recommendation of a forum despite my serious doubts. It was cheap. Is there a clear-coat remover? Would Na2CO3 in an oil work?



"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
View user's profile View All Posts By User
happyfooddance
National Hazard
****




Posts: 530
Registered: 9-11-2017
Location: Los Angeles, Ca.
Member Is Offline

Mood: No Mood

[*] posted on 3-9-2019 at 15:48


I would try an ester like ethyl acetate, or some smallish solvent like MEK.

Dilute HCl sounds like a great way to get a perennially rusting tool.

The coating is definitely an organic, a hot brisk torch flame will do the job, but might ruin the heat treatment of the tool if you don't know what you're doing.

You can scrape a little bit of the tool coating off and do a little qualitative analysis, that's what I would do.
View user's profile View All Posts By User
Deathunter88
National Hazard
****




Posts: 519
Registered: 20-2-2015
Location: Beijing, China
Member Is Offline

Mood: No Mood

[*] posted on 3-9-2019 at 19:44


If acetone won't touch it, then MEK won't either. Try a chlorinated solvent such as methylene chloride (paint stripper).
View user's profile View All Posts By User
happyfooddance
National Hazard
****




Posts: 530
Registered: 9-11-2017
Location: Los Angeles, Ca.
Member Is Offline

Mood: No Mood

[*] posted on 3-9-2019 at 20:46


Jesus Christ, if you are going to quote someone, at least do so accurately.

Edit: basically, that is not the proper way to use quotations.

And deleting your post is not the solution.

[Edited on 9-4-2019 by happyfooddance]

[Edited on 9-4-2019 by happyfooddance]
View user's profile View All Posts By User
Ubya
International Hazard
*****




Posts: 1247
Registered: 23-11-2017
Location: Rome-Italy
Member Is Offline

Mood: I'm a maddo scientisto!!!

[*] posted on 4-9-2019 at 01:40


if it is not a hardened tool and you don't mind tge aesthetic, you can remive the coating by burning it with a torch.
a chlorinated solvent should work, maybe soaking the part for a longer period of time should work, often if a solven doesn't work in a fee seconds doesn't mean it doesn't work in a matter of hours or days





---------------------------------------------------------------------
feel free to correct my grammar, or any mistakes i make
---------------------------------------------------------------------
View user's profile View All Posts By User
Dr.Bob
International Hazard
*****




Posts: 2739
Registered: 26-1-2011
Location: USA - NC
Member Is Offline

Mood: No Mood

[*] posted on 4-9-2019 at 09:51


If DCM does not work well, try DMSO or DMF, they strip off most paint and plastic.
View user's profile View All Posts By User
Fantasma4500
International Hazard
*****




Posts: 1681
Registered: 12-12-2012
Location: Dysrope (aka europe)
Member Is Offline

Mood: dangerously practical

[*] posted on 4-9-2019 at 23:22


underwater HE blast might help, you can get "air hammers" which basically fires like 20 hardened pins with airpressure at whatever, its oftenly used to remove rust and dirt from metal.
you may also be able to use electrolysis, i think you would want the tool to be the negative, anode so the positive ions would connect to it, this is also used for cleaning steel, or you could try to see first up if boiling base or acid would work, less likely acid will work, except for if its acid that directly corrodes the metal




~25 drops = 1mL @dH2O viscocity - STP
Truth is ever growing - but without context theres barely any such.

https://en.wikipedia.org/wiki/Solubility_table
http://www.trimen.pl/witek/calculators/stezenia.html
View user's profile View All Posts By User
markx
National Hazard
****




Posts: 646
Registered: 7-8-2003
Location: Northern kingdom
Member Is Offline

Mood: Very Jolly

[*] posted on 5-9-2019 at 23:52


I would steer away from acids, especially hydrochloric, assuming the tools are made from steel. It would probably work to separate the labels from the tools, but most likely the tools shall be removed from the labels and not the other way round :D
Extended soak in heated solvents (I prefer ester+toluene/xylene mix...agressive type paint solvent) usually does the trick to soften up and remove most of any organic layers from steel substrates.
One could also try an extended soak in paint removers.....these also tend to make quick work on organic polymer layers.




Exact science is a figment of imagination.......
View user's profile View All Posts By User
draculic acid69
International Hazard
*****




Posts: 1371
Registered: 2-8-2018
Member Is Offline


[*] posted on 7-9-2019 at 05:44


I couldn't think of a worse thing for a steel tool than acid of any sort.even phosphoric would cause problems due to a layer of iron phosphate forming
View user's profile View All Posts By User

  Go To Top