(Topic ID: 207330)

Tape/foam mark on back glass?


By mrbanjo

1 year ago



Topic Stats

  • 17 posts
  • 10 Pinsiders participating
  • Latest reply 3 months ago by Lathroum
  • Topic is favorited by 1 Pinsider

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#1 1 year ago

Any ideas to fix this? Would you just scrape the mark itself off and color natch the paint?
It is in a opaque area. Too bad as the glass is 98% otherwise!

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#2 1 year ago

Personally, leave it. You will only make it worse.

#3 1 year ago

You would be brave to attempt to resolve that one. I would leave it as part of the character of the machine.

#4 1 year ago

I once fixed some really bad flaking in a FQ bg I had using clear acrylic and then tinted it with acrylic paint! It was somewhat transparent and had good coverage, minwax polycrylic clear is what I used.

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#5 1 year ago

This.

Quoted from FrankJ:

Personally, leave it. You will only make it worse.

If you had to post here to ask you are not a professional who would not have to ask.

#6 1 year ago

Ah, the unsightly foam marks. It seems that this particular vintage games were most susceptible to this unfortunate type of blemish.
I don't know. Because of the location, and that it's an opaque, single color area, I would maybe attempt to repair that one. If you don't feel confident, ask around and see if someone else with more expertise might do it for you. It might be worth it if the glass is otherwise very good.

#7 1 year ago

Little confused , is this tape residue on the back of the backglass on top of the ink ?

#8 1 year ago

There’s some chemical reaction between the tape and paint in Gottliebs in that era. The tape doesn’t adhere to the glass, but discolors the area it touches.

#9 1 year ago
Quoted from FrankJ:

There’s some chemical reaction between the tape and paint in Gottliebs in that era. The tape doesn’t adhere to the glass, but discolors the area it touches.

So its on the back where the ink is but not tape, just residue that has affected the ink showing through ?

#10 1 year ago
Quoted from SUPERBEE:

So its on the back where the ink is but not tape, just residue that has affected the ink showing through ?

For the life of the game, the ink on the back glass was resting up against a few pieces of black foam rubber which is attached to the wood insert. Rarely, is the foam sticking to the BG ink. It just out-gassed something that bleached just about any color Gottlieb used in the 70's. The foam was added to prevent rattle and stop the wood insert from rubbing against the back of the BG.

Its sad too, because many glasses that are flaking, usually don't have the tape marks. But the ones with the tape marks are often in much better shape overall except for the tape.

#11 1 year ago
Quoted from SUPERBEE:

So its on the back where the ink is but not tape, just residue that has affected the ink showing through ?

Yes, the foam seemed to bleach the paint. Its the way to tell an original from a reproduction Every 60's GTB seemed to have this.

#12 1 year ago
Quoted from CactusJack:

For the life of the game, the ink on the back glass was resting up against a few pieces of black foam rubber which is attached to the wood insert. Rarely, is the foam sticking to the BG ink. It just out-gassed something that bleached just about any color Gottlieb used in the 70's. The foam was added to prevent rattle and stop the wood insert from rubbing against the back of the BG.

Its sad too, because many glasses that are flaking, usually don't have the tape marks. But the ones with the tape marks are often in much better shape overall except for the tape.

Quoted from pinhead52:

Yes, the foam seemed to bleach the paint. Its the way to tell an original from a reproduction Every 60's GTB seemed to have this.

Got it ! That sucks. The reason i was asking is that im in the graphics business and have learned many unique ways to remove residues and was hoping i could help but unfortunately not in this situation.

#13 1 year ago

Also, please correct me if I am wrong. But it is technically an ink and not a paint.

#14 1 year ago
Quoted from Taxman:

Also, please correct me if I am wrong. But it is technically an ink and not a paint.

For the record i did say ink.

Quoted from SUPERBEE:

So its on the back where the ink is but not tape, just residue that has affected the ink showing through ?

#15 1 year ago
Quoted from SUPERBEE:

For the record i did say ink.

Yes you did. But too many people say paint in this thread. I've seen too many bad touch ups with paint and brush strokes to risk another.

#16 1 year ago

The backglasses we're silk screened with ink. But most people use paint to do the touch ups.

I have seen others write about using stained glass window inks but they obviously have to be followed up with a thin layer of white to not be fully transparent.

1 year later
#17 3 months ago

Just picked up a Gottlieb Jungle... Backglass is great... same marks... but only in the red/orange areas...

you can see it under the Jungle and by the small monkey...

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