Removing MCW paint ?

[Jon Haigwood]

Looking for the best way to remove MCW paint . I have tried the Purple Pond and it doesn't seem to touch it. The reason I need to remove it is that the primer doesn't stick to the plastic and if I use tape it pulls the paint off when I remove it even Bare-M-Foil will chip the paint off down to bare plastic. Not sure if I need to do more prep work or use a different primer ? I am using MCW primer.

Edited November 24, 2024 by Jon Haigwood

[StevenGuthmiller]

I don’t have to do it often, but when I do have to remove MCW paint, Super Clean does the job quite well.

Mind you, it’s a lacquer, and is absolutely more difficult to remove than an enamel, but the same can be said for any other automotive type lacquer.

Now I will say that I use Duplicolor primers under MCW and Scale Finishes paints, which greatly facilitates the paint’s removal due to the fact that Duplicolor primer is fairly quickly and easily dissolved by Super Clean, which in turn causes the lacquer to slough off in sheets.

The use of different primers will determine how effective Super Clean will be for stripping lacquer paints.

Should I need to strip a paint job, (which is extremely rare using the painting procedure and materials that I use) I will use the edge of a flat screw driver, or something similar, to scratch the surface of the paint down to the primer in various areas.

This will allow the stripping solution to seep under the paint, dissolving the primer and allowing the paint to lift.

The scratching step isn’t necessary should you have areas inside of the body with exposed primer as the Super Clean will work it’s way under the paint from those points and work it’s way around the body.

In conclusion, you’re choices of primers will greatly affect the ease of which the removal of lacquer paints can be achieved using a number of different products which rely on lye as their active ingredient.

This example shows how Super Clean will work on even as many as 5 coats of MCW lacquer and an additional 5 coats of Duplicolor clear lacquer with Duplicolor primers as a base.

 

 

 

Steve

[Dave G.]

It sounds like you already found your paint remover, masking tape. Get the blue painters tape, plaster it all over the car and rip it off !!

[johnyrotten]

Sounds to me like the primer never bonded to the surface. Sanding too fine MAY cause that, as well as contamination from oils, hands ect. MCW is nice stuff, so I'm with you thinking it's a prep issue. Looking forward to what you find out. Good luck. 

[Jon Haigwood]

2 hours ago, johnyrotten said:

Sounds to me like the primer never bonded to the surface. Sanding too fine MAY cause that, as well as contamination from oils, hands ect. MCW is nice stuff, so I'm with you thinking it's a prep issue. Looking forward to what you find out. Good luck. 

I am going to do some spoon trials with MCW , Createx Auto Borne sealer and some Duplicover (as mentioned above) primers and treat it like my regular process. I will steel wool the spoons first. I have never had this "chip out" problem before, only with MCW. I am hoping it is just needing better prep work. 

Edited November 25, 2024 by Jon Haigwood

[StevenGuthmiller]

1 hour ago, Jon Haigwood said:

I am going to do some spoon trials with MCW , Createx Auto Borne sealer and some Duplicover (as mentioned above) primers and treat it like my regular process. I will steel wool the spoons first. I have never had this "chip out" problem before, only with MCW. I am hoping it is just needing better prep work. 

Well, if it’s any consolation, I never have any problems with chipping or anything like that when I use Duplicolor primer under MCW paint.

But then again, I also use multiple coats of Duplicolor clear over the color as well.

Makes whatever paint I’m using as tough as nails in the end.

 

 

 

Steve

[Bucky]

I recently had a similar problem with Duplicolor primer. The kit body had been prepped and primed about 4 to 5 years ago. A few weeks back, I masked the body with Tamiya tape and wax paper so I could paint the roof white. When I started removing the tape, several spots of the primer came off the body along with the tape. I am planning to use MCW lacquer on this project, so I'm interested in the outcome of this problem. 

Edited November 25, 2024 by Bucky

[johnyrotten]

4 hours ago, Bucky said:

I recently had a similar problem with Duplicolor primer. The kit body had been prepped and primed about 4 to 5 years ago. A few weeks back, I masked the body with Tamiya tape and wax paper so I could paint the roof white. When I started removing the tape, several spots of the primer came off the body along with the tape. I am planning to use MCW lacquer on this project, so I'm interested in the outcome of this problem. 

I may be wrong, but the wax paper might have caused your issue. Painting,  at least to me, almost seems to have a mind of its own at times. One time you lay down a "perfect" coat, the next Murphy shows up and well, you know. At time it's almost alchemy. I've decided to mess with craft paints on my current project, that was a learning curve.