Jump to content
Classifieds is broken, please do not submit any new ads ×

Tarnished Acrylic Inside Of Clear Acrylic Demonstrator


Recommended Posts

I recently tarnished a clear monteverde artista. Some rubbing alcohol got into the inside of the cap and created a thin, white, opaque film. Does anyone have any suggestions on how to fix this, or should I just give up on this? I've managed to clear out a lot of the tarnish by rubbing it off with plastic picks and other miscellaneous items, but there are small crevices that can't be reached. Some people have suggested rinsing the cap out in acetone or MEK, but I'm worried doing that will ruin the cap beyond repair. Any suggestions or help is much appreciated.

Link to comment
Share on other sites

  • Replies 4
  • Created
  • Last Reply

Top Posters In This Topic

  • kirchh


  • Freddy


  • pnin22


  • LBL


Top Posters In This Topic

Rubbing alcohol does not dissolve acrylic, so maybe the film is just dirt or oil residue? In that case you could try soapy water. Acetone and MEK will definitely cloud the surface and soften it to the point of melting if you leave on long enough

Link to comment
Share on other sites

Rubbing alcohol does not dissolve acrylic, so maybe the film is just dirt or oil residue? In that case you could try soapy water. Acetone and MEK will definitely cloud the surface and soften it to the point of melting if you leave on long enough


Note that "rubbing alcohol" is not a specific type of alcohol, and in any event, many rubbing alcohols contain isopropanol, which will indeed affect acrylics to some degree, as will other alcohols. See, for example, this.



Edited by kirchh

"The greatest mental derangement is to believe things because we want them to be true, not because we observe that they are in effect." --Jacques-Bénigne Bossuet

Daniel Kirchheimer
Specialty Pen Restoration
Authorized Sheaffer/Parker/Waterman Vintage Repair Center
Purveyor of the iCroScope digital loupe

Link to comment
Share on other sites

Image what that (expletive) would do to the plexiglass acrylic display case{s}

I make to house the plank on bulkhead /frame ships that I build......

Hmm....Like Stuff{expletive}! Yup..that's the ticket................................



Editing....I ain't talkin' off the top of my head...........

Again editin' cause me spellin is atrocious........


Edited by Freddy
Link to comment
Share on other sites

The solvent leached out the low molecular weight polymers along with the additives from the surface. When the solvent evaporated it left behind the material. You can restore the clear finish if the damage is only on the surface by removing the film. I find it easiest to do this on a lathe with a very sharp tool bit.


If the part was injection molded there are additional damage mechanisms and they will be harder to repair.



San Francisco International Pen Show - The next great pen show is on schedule for August 27-28-29, 2021. If we all do what we need to do...you can Book your travel and tables and make SF 2021 the Return. 

 My PM box is usually full. Just email me: my last name at the google mail address.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Most Contributions

    1. amberleadavis
    2. PAKMAN
    3. Ghost Plane
      Ghost Plane
    4. jar
    5. wimg
  • Upcoming Events

  • Blog Comments

    • A Smug Dill
      @Texas42 Thank you. I myself have recently had the experience of cleaning out a Wing Sung 699, in which the iron-gall ink has been sitting for six months. No damage to the metal piston rod (whereas, in a Wing Sung 3013 vacuum-filler, it would have been corroded, turned green, and contaminated the ink in mere weeks), but there was a ring of colour at the far end of the barrel that wouldn't budge, and I found it impossible to unscrew the filling mechanism to clean the interior wall of the ink rese
    • Texas42
      Dang. You are a great friend!   One comment as a relative newcomer would be within the cleaning section: issues/differences in cleaning vacuum filler, piston filler in addition to cartridge/converter. I just cleaned out my Pilot 823 and while it wasn't particularly difficult I was a little paranoid about the drops of water that I could not get out. Perhaps this is something you are already including.   Anyway, great project and very thoughtful of you. I know it's a project fo
    • Splat
      Ah Ruaidhri ya wee heid banger, you do indeed have an Irishman’s way wid dose words now. I’ll be from outer Aberdeenshire up in the blizzard riven braes of the Grampians.  Amateur medicine and surgery is it? Well what noble aspirations you do possess, we need to encourage such noble experimentations.  I pondered on leaving my own battered shell to science, but, until I read your pearls of wisdom and lament, I had comedown on the side of leaving my body to Findus frozen foods.  However, your rema
    • austollie
      Hi Smug Dill,   Nice project.  If it were me, I'd cover stuff like: - nib types available, i.e. styles, materials (SS vs gold), flex vs nails; - filling systems (I love the "thingie" comment) and how once can use them in practice (e.g. fill cartridges with a syringe); - pen body materials and their consequences (pen not balanced of too heavy and big for the hand); - and, whilst you've made it clear that you do not like vintage pens, a discussion of these beyond "I d
    • A Smug Dill
      Thanks for your input! Yes, not putting wood in the list of body materials warranting a mention was an oversight. I love pens with wooden bodies, but my main concern, or chagrin, is that I have not come across a wooden-bodied pen with a wooden cap that seals well. Actually, there is one, but it isn't really wood per se: the Pilot Custom Kaede's maple body is resin impregnated. All other wooden pens I have can dry out while capped and undisturbed; that includes several Platinum #3776 models.
  • Chatbox

    You don't have permission to chat.
    Load More
  • Files

  • Today's Birthdays

    1. autumnsong
    2. brandon8602
    3. CameronB
      (54 years old)
    4. cardehar
      (36 years old)
    5. cruisefor2
      (74 years old)

  • Create New...