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Aussie Pinball Forums => Technical Matters => Pinball Repairs / Problems & Assistance => Topic started by: millsy on March 18, 2009, 10:21:27 PM

Title: Removing Paint
Post by: millsy on March 18, 2009, 10:21:27 PM
Is it possible to remove the artistic artwork potrayed by a previous owner of my recent acquisition (refer photos)
I want to try and remove this without stripping the original design paintwork under it (if its there).I tried Citristrip on the coin door but it removed some of the original paint. Did Gottlieb use enamels back in the 70s -I think the latest work of art is acrylic. Any product out there that will remove acrylic & leave enamel alone ?
Any thoughts.
Kev
Title: Re: Removing Paint
Post by: ddstoys on March 18, 2009, 10:25:50 PM
Hey Millsy your coin door wouldn't have been painted originally so whatever is over it should come off hopefully leaving a nice shiny chrome door? unlikely but wishful thinking never killed anyone.

 Check this site out should tell you everything you need to know if it doesnt just keep asking herehttp://www.pinrepair.com/restore/index1.htm#paint
Title: Re: Removing Paint
Post by: Ford Fairlane on March 18, 2009, 10:30:44 PM
just be really careful with the goof off as i used this on one side of my gulfstream cab and it attacked the original artwork as well. I had much better results scratching it off with a coin on the other side. I guess it depends on the paint type that the new "artist" used. I was lucky as it seemed to be a latex paint which is so much easier to take off.
Title: Re: Removing Paint
Post by: millsy on March 18, 2009, 10:34:31 PM
Hey Millsy your coin door wouldn't have been painted originally so whatever is over it should come off hopefully leaving a nice shiny chrome door? unlikely but wishful thinking never killed anyone.

 Check this site out should tell you everything you need to know if it doesnt just keep asking herehttp://www.pinrepair.com/restore/index1.htm#paint
Got the paint off the coin door ok. Meant the woodwork.
Title: Re: Removing Paint
Post by: ddstoys on March 18, 2009, 10:37:19 PM
Hows the door looking?  Most of mine have been rusty as i got one to polish up ok the other i just hit with the wire brush then sprayed it with chrome paint then cleared it to keep it shiny doesnt look original but looks better than the rusty old door..    I havnt forgotten about your parts either my Project is taking longer than expected i might even puul it off befor the big event just so i can get em to you
Title: Re: Removing Paint
Post by: millsy on March 18, 2009, 10:58:22 PM
I think it looks better than the painted job. Was thinking about the painted chrome look,if you get a chance take a picture of one that you have painted if you still have it. No hurry with those parts - thankful that youre saving them for me.
Kev
Title: Re: Removing Paint
Post by: Strangeways on March 18, 2009, 11:08:22 PM

Kev - You could try one of two things ;

Citrus Strip - But instead of leaving the product on the paint for 20 - 30 minutes - leave it there for 10 minutes

Sanding the topcoat with a belt sander - Try experimenting with different grits.
Title: Re: Removing Paint
Post by: ddstoys on March 19, 2009, 06:38:42 AM
No probs kev ill get you a photo of that door tonight
Title: Re: Removing Paint
Post by: MartyJ on March 19, 2009, 06:34:32 PM
Just an idea only - has anyone tried using prepsol?  If it was fresh I would think it would work no probs but I would be interested in a test spot to see if it worked???   *!@
Title: Re: Removing Paint
Post by: ddstoys on March 19, 2009, 06:44:34 PM
Hey Kev here is that photo you requested
Title: Re: Removing Paint
Post by: millsy on March 19, 2009, 07:05:12 PM
Just an idea only - has anyone tried using prepsol?  If it was fresh I would think it would work no probs but I would be interested in a test spot to see if it worked???   *!@
I think prepsol is the same product as shellite,good for removing wax,silicans etc for pre painting but I dont think it would be potent enough to remove paint.
Title: Re: Removing Paint
Post by: millsy on March 19, 2009, 07:08:43 PM
Daniel,
Looks good,might do my bazaar coin door that way as well.
Kev
Title: Re: Removing Paint
Post by: MartyJ on March 19, 2009, 07:33:40 PM
Just an idea only - has anyone tried using prepsol?  If it was fresh I would think it would work no probs but I would be interested in a test spot to see if it worked???   *!@
I think prepsol is the same product as shellite,good for removing wax,silicans etc for pre painting but I dont think it would be potent enough to remove paint.

Not sure.  I think it has more strength than shellite...
I've just been on the phone to my spray painter mate.....He reckons prepsol may be worth a try, but most likely will not do much.  He seems to think thinners should remove it (depending on type of paint) BUT could also take out paint from underneith?

Are you planning to try to recover it to make a stencil?
Title: Re: Removing Paint
Post by: millsy on March 19, 2009, 07:40:43 PM
I think thinners wont affect acrylic paint but will affect oil based paint - chances are the original paint would be oil based. If the original paint isnt any good i will need a template at least to make up a trace then either paint it or decal it.
Kev
Title: Re: Removing Paint
Post by: ddstoys on March 19, 2009, 08:25:31 PM
Ive been told that is correct Millsy but ive never been game to try it if you do try it just try it under a leg or something
Title: Re: Removing Paint
Post by: pinfrog on March 22, 2009, 07:16:39 PM
I  have restored a few early 70s machines that had been repainted and had good results with this method ! I use ^^^ normal paint stripper.Paint on stripper approx a square foot at a time.As soon as the stripper begins to bubble (around 15 secs) scrape off with a putty knife or similar.Dont put paint stripper on too thick.Get a "feel "" to how long the stipper needs to stay on.If done correctly you should be left with the original design.
Title: Re: Removing Paint
Post by: ddstoys on March 22, 2009, 08:34:19 PM
Kev 
       Ive modified those photos roughly into shape for you if i email them to you all you need to do is print it out at the size it is and then use the design to cut your stencil do you have a program like Paintshop pro that allows you to print part of an image then you can stick em together?  If you do ill resize them so all you need to do is print em
Title: Re: Removing Paint
Post by: millsy on March 22, 2009, 09:42:21 PM
Hi Daniel,
Only have photoshop - I think I can use this programme.
My budget hydraulic lift arrived Fri & have modified it today to lift higher so I can remove legs.
I might try pinfrog way of stripping paint then I can get stuck into it.
Kev
Title: Re: Removing Paint
Post by: millsy on April 02, 2009, 11:28:51 PM
Tried the coin scratch method - a bit labour intensive.
Tried Citris strip method - takes too long & will soften original paint
Best method found was PinFrogs method - normal stripper & thin layer,wait 15secs & gently scrape.
Millsy
Title: Re: Removing Paint
Post by: Retropin on April 03, 2009, 01:11:09 AM
Crikey!! The new artist didnt hold back on loud design!
Removing new paint from old is a real issue and any success will largely depend on what condition the original artwork is in underneath. The biggest saving grace with a repaint is that the "artist" rarely prepares the surface before repainting - its just slapped on.
 acrylic is tough to get off - i hate the stuff. Enamel is easier. Now hopefully - the original cabinet was not cleaned or rubbed back - if it was then i dont give it much hope.
 But best results ive got is to find a spot where the new paint has a chip or similar taken out of it and to use a razors edge paint stripper - its possible to lie it so flat that it actually glides between the 2 layers of paint. If the new paint is enamel then sometimes you can almost pull it off in sheets as it just peels away. Other parts you can chip away at it and it comes off in flakes.
its a long and laborious job and the kind of job you walk away from several times then go back to.

Good luck mate! I hope for your sake that the original abinet was still in relative good shape
Title: Re: Removing Paint
Post by: ddstoys on April 03, 2009, 04:48:33 PM
Let me know if you want them pics Kev
Title: Re: Removing Paint
Post by: millsy on April 04, 2009, 12:48:01 AM
Thanks Daniel,will see how it looks when I strip the cabinet & remaining backbox top layers.
Kev
Title: Re: Removing Paint
Post by: ddstoys on April 04, 2009, 12:11:09 PM
Doing a good job so far looks like you will be able to make a stencil fingers crossed