DKRickman

No, not that kind of stripper!

My favorite paint stripper is oven cleaner.  Works well on every paint I've tried, doesn't hurt plastic or metal, and it's cheap and easily available.  I usually put the model into a plastic baggie, spray as much cleaning foam into the bag as possible, then seal it up and let it work for a few hours, or even a few days.

I've managed to strip Rivarossi shells that no other stripper would touch, so clean that they looked like they were fresh from the factory.  I an a little wary of putting brass, copper, or zinc into it, though my chemistry training (admittedly a long time ago) suggests that it will be okay.

Here's the question, though.  Since oven cleaner is basically (no pun intended) just lye, could I make up a strong lye solution using drain cleaner (Red Devil lye, if you can still get it) and pour it over my models?  The only drawback to the oven cleaner is the foaming action - it's messy, and the fumes are intense.  It also means that most of the volume of the bag is not filled with stripper, but just air.  A pre-mixed liquid might be more convenient and less noxious.

Any comments, especially from experience?

Ken Rickman

Danville & Western HO modeler and web historian

http://southern-railway.railfan.net/dw/

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ratled

It depends......

What are you trying to strip?  A Kato loco?  Atlas car?  Scale Coat you put on 10 years ago?  Each type of finish and each type of model will react differently to all the witches brews out there.  But the only two things I put lye on is glass ceramic and gold - it won't eat through either.

Steve

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DKRickman

You never know what I'm stripping

One day I might want to strip an Athearn locomotive, the next an old brass model.  Sometimes it's a commercial finish, sometimes it's something I've painted.  My current project is removing a really poor quality paint job I just did a few days ago, using an off-brand version of Rustoleum gloss black in a spray can.  That's some tough stuff!  On the other hand, a 50+ year old Globe F7B was stripped clean almost as soon as it hit the oven cleaner.

Like I said, I've found oven cleaner to be the best all-purpose stripper.  I don't like having to maintain a variety of products to do the same job - this one for Kato, that one for Atlas, this one over here for Rivarossi, etc.  I can keep on using the spray, of course, but I wondered if there is any reason why pure lye would be different, chemically?

Ken Rickman

Danville & Western HO modeler and web historian

http://southern-railway.railfan.net/dw/

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Marc W

Are you sure it's just the lye?

Are you sure it's just the lye (sodium hydroxide) in the oven cleaner that is removing the paint?  

Easy-Off oven cleaner, a popular brand used as an example, also contains Butane, Monoethanolamine and Diethylene Glycol Monobutyl Ether. The latter is a major component of brake fluid, which will also remove paint from plastic shells.  It sounds like the oven cleaner is a concoction of several chemicals capable of removing various types of paint, which is probably why it's so effective.  I'd be hesitant to mess around with pure lye anyway as mixing it with water can produce heat.  Also be careful with the zinc, bronze, tin and aluminum around lye, it will react with those to produce hydrogen gas.

 

 

Reply 0
Eric Hansmann Eric H.

Works for me

Chameleon paint stripper works well for me on a number of plastic freight cars. Newer cars and locos may strip easily using 91% alcohol as most modern paints are now an alcohol base. If you want to strip metal and plan to do so frequently, I think I'd rather use an ultrasonic.

Eric

 

 

Eric Hansmann
Contributing Editor, Model Railroad Hobbyist

Follow along with my railroad modeling:
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Reply 0
CATTRAIN1

STRIPPER

I use Pine Sol in a plastic container overnight.  Has worked well so far and no damage to plastic or metal

Gary, Hialeah, Fl

Reply 0
pipopak

Brake fluid...

..... NOT silicone type did the trick years ago, but some experimentation and/or other input would be advisable now.

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JRG1951

WOW!

Are we not all looking for a good stripper?

OH! You mean a paint stripper.

Never mind!

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Ric B

Na OH

I have used Caustic Soda (NaOH) as a stripper on cars and Locos  - diluted down to about 10% -will attack aluminium though - but it works quickly for most paints

 

Regards

 

Ric B

Reply 0
Russ Bellinis

Denatured alcohol.

Denatured alcohol was the chemical component of brake fluid that worked as a paint stripper.  Basically the old style brake fluid was a mixture of denatured alcohol and light oils to lubricate brake system parts.

Denatured alcohol is readily available as a paint thinner at any paint store, hardware store, or big box home improvement store.

I have discovered, however, that the alcohol worked as stripper on old Athearn rolling stock and engines, but the new stuff is using a different paint formula and the alcohol doesn't do anything at all, neither does Pine Sol do anything with the new paints that Athearn uses.

Reply 0
pipopak

This was not good....

When in my early teens (when I knew EVERYTHING) I sandblasted a plastic Lionel GP unit. Worked too good, way too good!.

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Bob Langer

About time

"

Are we not all looking for a good stripper?

"

I was wondering if anyone was going to comment on the obvious.

Bob Langer,

Facebook & Easy Model Railroad Inventory

Photographs removed from Photobucket.
 

Reply 0
feldman718

Are we not all looking for a good stripper?

"

I was wondering if anyone was going to comment on the obvious.<

Not all of us are dirty old men.

Irv

Reply 0
Alexedwin

Who's old?

Who's old?

Alex

One day I might be modeling the Puffing Billy Railway, Victoria, Australia.

My location - Queensland, Australia.

Reply 0
feldman718

Looking for a stripper

So what's wrong with being old? It sure beats the alternative, don't you think?

As for the dirty part, i would think you should object to that more the old part.

Irv

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Alexedwin

It was tongue in cheek, I am

It was tongue in cheek, I am old, but not dirty. (I think)

Alex

One day I might be modeling the Puffing Billy Railway, Victoria, Australia.

My location - Queensland, Australia.

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feldman718

Of course it was tongue in cheek,

but so was the original message

But it is nice to know that even if we are old (if you can consider 63 as being old) we can still have some fun with model railroading.

Irv

Reply 0
nrandel

Oh, Crap!

Pipopak

How funny is that! I'm still rolling on the floor. Sounds like you could have painted it rust and put it on a track in the recycling yard.  LOL-thanks.

(Sorry, I didn't get this attached to your reply)

Reply 0
jose73

New Paint Stripper For Plastic Now Available

The brand name is Blue Magic and it works better than Chameleon.  I have used it to strip an Athearn, Kato and brass engines with no problem.  I like it because it disolves the paint and does not have to be strained to reuse.

It's available on eBay in both pint, quart and gallon size.  Just search for Blue Magic.

 

 

Reply 0
edmcginley
I have found that Super Clean  in the purple bottle is a very effective stripper.  It is available at Walmart, Amazon and many auto parts stores. Pictures of the bottle included.  A gallon is about $15.

I use a plastic rubbermaid type container with lid.  Athearn shells are generally ready to scrub within an hour.  Sometimes needs a second soaking.  

I have not left a shell long term in the solution, nor overnight so I can not speak to long term soaking.  Does not seam to make plastic brittle like brake fluid.

Used to use Chameleon stripper and guarded my stock jealously but once I was told about this stuff this is all I use.
Reply 0
esmith
For plastic models, Goobertown Hobbies did an excellent comparison of different methods. He's a PhD chemist as well, so he knows his stuff. May be worth a watch before you dunk something:
Reply 1
anteaum2666
Good thread and good information, thanks!  I tried stripping the paint from a bobber caboose using brake fluid, and it did pretty well.  I soaked it for three days.  There are still a few stubborn spots.  It used to be red, and it had two coats of paint plus decals.  I may try some of the other methods for the remaining bits.

Also, this thread gets my vote for the best topic title of 2022!  I've booked my flight to Vegas to begin my research.  😁😜

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