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Weird coating on 78s

Posted: Thu Jan 22, 2026 12:41 am
by mjbarnes
I was playing a Lena Horne 78 with a modern stylus at 3 g. The needle got gummed up with black oily gunk from the grooves. What is it?

I don't yet have a stylus brush so have just been blowing dust off. But this pasty stuff I am struggling to remove with tweezers.

I am curious to know what is in those grooves. Thanks.

Re: Weird coating on 78s

Posted: Thu Jan 22, 2026 6:28 am
by JerryVan
Impossible for us to say. Just clean the record and try again.

Re: Weird coating on 78s

Posted: Thu Jan 22, 2026 1:52 pm
by poodling around
just maybe a photograph would be helpful ?

Re: Weird coating on 78s

Posted: Thu Jan 22, 2026 7:07 pm
by Marc Hildebrant
Clean with Soap and water. Do not use alcohol as that will soften the shellac.

Marc

Re: Weird coating on 78s

Posted: Fri Jan 23, 2026 1:42 pm
by howardpgh
I have heard of people spraying records with "ArmorAll" or "WD40" to make them look shiny.
Clean the stylus with a small brush dipped in Isopropyl Alcohol.

Re: Weird coating on 78s

Posted: Sun Jan 25, 2026 11:01 pm
by mjbarnes
Thanks, everyone for the suggestions.