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MM Acryl, Stripping?

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  • Member since
    January 2007
  • From: Long Island, NY
MM Acryl, Stripping?
Posted by Intruder38 on Tuesday, January 13, 2009 1:29 PM
Having painted a 1/72 canopy freehand with MM Acryl, and having it come out a little less than desirable (well, really a lot less), I decided to strip it and try masking or applying painted paint strips. So, relying on my memory of prior posts here on FSM, I soaked it in brake fluid for a few hours, then over night, then for over a week. Paint's still there. So, next, the same sequence with Windex with Ammonia; same result. Finally, same sequence with MM Acryl thinner; uh-uh, no dice. What am I doing wrong? Or better yet, what to do right? Thanks for any assistance.
  • Member since
    August 2006
  • From: Neenah, WI
Posted by HawkeyeHobbies on Tuesday, January 13, 2009 1:37 PM

LEAVE THE BRAKE FLUID IN THE CAN...Do not use for stripping!

Have you tried washing and rubbing the part under warm water now that the solvents have softened it? You might just have to take a polishing stick and wet sand it to remove the paint. Then dip in Future...always predip your clear parts before painting. That way you can strip them easier with just Windex if you goof up.

You can make a scraper out of a craft stick to remove unwanted paint that may have slopped over off the framing.  Just use your #11 blade to cut a chisel end and go at it...the wood should be hard enough to strip the paint away yet soft enough not to damage the plastic.

Gerald "Hawkeye" Voigt

http://hawkeyes-squawkbox.com/

 

 

"Its not the workbench that makes the model, it is the modeler at the workbench."

  • Member since
    January 2007
  • From: Long Island, NY
Posted by Intruder38 on Tuesday, January 13, 2009 3:55 PM

Gerald,

After each of the attempts, I used a toothbrush under running warm water to no avail. I did manage to get some spots off using my fingernail and the point on my #11 blade (not the brightest move I must admit), that after a chisel shaped toothpick and a chisel pointed popsicle stick proved ineffective. I did not dip the canopy in Future, but will make that a routine operation in the future (Ooops, no pun intended). About all I haven't tried are pure ammonia and the MM Acril Dried Paint Remover.

And, lest I forget, Thanks for the quick response.

  • Member since
    June 2006
  • From: Westerville, Ohio
Posted by Air Master Modeler on Tuesday, January 13, 2009 6:19 PM
There are two products sold in stores that will remove water base acrylic paint, first is called Oops and the other is Goof Off. Oops is a solvent base remover and Goof Off comes in both a solvent base and water base. Either one will work but will require scraping off the paint after these products have softened the paint. Both work very well

Rand

30 years experience building plastic models.

WIP: Revell F-14B Tomcat, backdating to F-14A VF-32 1989 Gulf Of Sidra MiG-23 Killer "Gypsy 207".

  • Member since
    January 2009
  • From: Edmonton, Alberta
Posted by Griffin on Tuesday, January 13, 2009 7:33 PM
I've also heard of soaking parts in a sealed container of hydrogen peroxide and I've had some luck with Easy-Off Oven Cleaner.

  • Member since
    April 2006
  • From: Navan, Ontario
Posted by Jagdwolf on Tuesday, January 13, 2009 8:15 PM
I've used Pine-Sol, and it works great.
  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Wednesday, January 14, 2009 1:02 AM

Once again check this link:

http://www.bonediggers.com/1-3/strip/strip.html

Super Clean is the best product out there IMHO and it is not toxic like brake fluid as it is biodegradable. My second choice would be Easy-Off oven cleaner in the yellow can as it contains Sodium Hydroxide (Lye) as does the Super Clean. 

 

 

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
dmk
  • Member since
    September 2008
  • From: North Carolina, USA
Posted by dmk on Wednesday, January 14, 2009 11:42 AM

There are many w ays to skin this cat, and most are much better than brake fluid IMO.

 I use Purple Power. It's a pretty strong degreaser, similar to Simply Green, but purple instead of green. You can get it in the automotive section of Walmart.  Just soak the model in PP and scrub the paint off with a soft brush. I keep a plastic pan full of the stuff for just this purpose.

  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Wednesday, January 14, 2009 11:48 AM
 dmk wrote:

There are many w ays to skin this cat, and most are much better than brake fluid IMO.

 I use Purple Power. It's a pretty strong degreaser, similar to Simply Green, but purple instead of green. You can get it in the automotive section of Walmart.  Just soak the model in PP and scrub the paint off with a soft brush. I keep a plastic pan full of the stuff for just this purpose.

Dave, I tried that once also and didn't get as good of results as I did with Super Clean. 

Look at your Purple Power label of ingredients as I don't remember what it said when I had some but I don't believe it had any Sodium Hydroxide (NaOH....aka Lye) in it like Super Clean and Easy-Off oven cleaner have. That is what makes them so effective.

I would assume you could also use Draino or Liquid Plumber as they also contain Sodium Hydroxide. Has anyone tried them? Not sure if the concentration of NaOH is too high in them for Polystyrene or not. Confused [%-)]

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
dmk
  • Member since
    September 2008
  • From: North Carolina, USA
Posted by dmk on Wednesday, January 14, 2009 12:01 PM

Dave, I tried that once also and didn't get as good of results as I did with Super Clean.

 Are you talking about Castrol Super Clean? I think I even have some of that in the garage, but I've never tried it for stripping paint. I'll have to give it a shot. I've been quite pleased with Purple Power, but if Super Clean works better, that's ...well, even better. Smile [:)]

  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Wednesday, January 14, 2009 12:40 PM
 dmk wrote:

Dave, I tried that once also and didn't get as good of results as I did with Super Clean.

 Are you talking about Castrol Super Clean? I think I even have some of that in the garage, but I've never tried it for stripping paint. I'll have to give it a shot. I've been quite pleased with Purple Power, but if Super Clean works better, that's ...well, even better. Smile [:)]

Yes that is it Dave. 

They changed the name and it is now just called, "Super Clean" so maybe Castrol no longer owns it? Not sure. Confused [%-)]

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
dmk
  • Member since
    September 2008
  • From: North Carolina, USA
Posted by dmk on Wednesday, January 14, 2009 3:46 PM
Ah, a pic is worth 1k characters.  Thanks Mike. I'll look for that next time I'm at WallyWorld.
  • Member since
    January 2007
  • From: Long Island, NY
Posted by Intruder38 on Wednesday, January 14, 2009 6:17 PM
To one and all, thanks for some very interesting ideas. Although I'm a little hesitant about using anything with lye as an ingredient, a little extra care (check that, a lot of extra care) should create a non-problem. I will be looking for the Super Clean for starters.
  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Thursday, January 15, 2009 2:28 AM

 Intruder38 wrote:
To one and all, thanks for some very interesting ideas. Although I'm a little hesitant about using anything with lye as an ingredient, a little extra care (check that, a lot of extra care) should create a non-problem. I will be looking for the Super Clean for starters.

I wouldn't consider lye as being overly dangerous. Just don't let it get on your skin for too long.

That brake fluid you used is not much better. If you get brake fluid in your eyes it will blind you!

 

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
dmk
  • Member since
    September 2008
  • From: North Carolina, USA
Posted by dmk on Thursday, January 15, 2009 6:42 AM
 MikeV wrote:

That brake fluid you used is not much better. If you get brake fluid in your eyes it will blind you!

 

Mmm, that's not necessarily true. I got a good shot once, right in the eyes when changing brake lines. Didn't go blind, but I did ruin an expensive set of contact lenses. Obviously, flush your eyes immediately with a very generous amount of water if this ever happens to you! Shock [:O]
  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Thursday, January 15, 2009 11:35 AM
 dmk wrote:
 MikeV wrote:

That brake fluid you used is not much better. If you get brake fluid in your eyes it will blind you!

 

Mmm, that's not necessarily true. I got a good shot once, right in the eyes when changing brake lines. Didn't go blind, but I did ruin an expensive set of contact lenses. Obviously, flush your eyes immediately with a very generous amount of water if this ever happens to you! Shock [:O]

OK let me rephrase that, it can make you blind and I was taught that from my dad who was a heavy equipment Master Mechanic in Operating Engineers Local 3 for a long time. 

My brother Rich has followed his lead and now does the same thing. 

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
dmk
  • Member since
    September 2008
  • From: North Carolina, USA
Posted by dmk on Thursday, January 15, 2009 6:15 PM
 MikeV wrote:
 dmk wrote:
 MikeV wrote:

That brake fluid you used is not much better. If you get brake fluid in your eyes it will blind you!

 

Mmm, that's not necessarily true. I got a good shot once, right in the eyes when changing brake lines. Didn't go blind, but I did ruin an expensive set of contact lenses. Obviously, flush your eyes immediately with a very generous amount of water if this ever happens to you! Shock [:O]

OK let me rephrase that, it can make you blind and I was taught that from my dad who was a heavy equipment Master Mechanic in Operating Engineers Local 3 for a long time. 

My brother Rich has followed his lead and now does the same thing. 

Oh, I wasn't really disagreeing with you. Just throwing out a "fate sometimes favors the young and stupid" story.

 Brake fluid is nasty stuff, no doubt. And I definately do not work around it without eye protection any more.

 

 

  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Thursday, January 15, 2009 7:36 PM
 dmk wrote:
 MikeV wrote:
 dmk wrote:
 MikeV wrote:

That brake fluid you used is not much better. If you get brake fluid in your eyes it will blind you!

 

Mmm, that's not necessarily true. I got a good shot once, right in the eyes when changing brake lines. Didn't go blind, but I did ruin an expensive set of contact lenses. Obviously, flush your eyes immediately with a very generous amount of water if this ever happens to you! Shock [:O]

OK let me rephrase that, it can make you blind and I was taught that from my dad who was a heavy equipment Master Mechanic in Operating Engineers Local 3 for a long time. 

My brother Rich has followed his lead and now does the same thing. 

Oh, I wasn't really disagreeing with you. Just throwing out a "fate sometimes favors the young and stupid" story.

 Brake fluid is nasty stuff, no doubt. And I definately do not work around it without eye protection any more.

 

 

No problem my friend. Wink [;)]

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
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