Black goop of death on which arcade cabinet?

Is the black goop of death on the Sega Blast city monitor a “very common” problem?

If I swap the monitor of the Sega Blast City with a Wei-Ya monitor, will I still have this black goop of death problem? Does the Wei-Ya monitor also have the black goop of death problem?

Does the New Astro City have this black goop of death problem?

Thanks

Does the New Net City have the black goop of death problem?

Please don’t post the same question in multiple threads,
thanks

It’s just potting compound breaking down (over time and with heat). Unless you are seeing/smelling/hearing/tasting arcing, there should be no reason for concern.

Yes blast city cabs are known for the black goop of death. One of my blast city has it but still kicking it for 3 years now.