DaveAl
Active Member
1. working forumla of 4 parts distilled water to 1 part of 91% iso, and 2.5 ml of Triton-x.
2. tried, in desperation, 100% alcohol
3. tried 3% hydrogen peroxide
4. tried scrubbing bubbles (definitely in desperation!).
Nothing I've tried has reduced the appearance of these marks--some which appear as outlines of fingerprints and others that don't. I'm using a Discwasher brush from the 1980's. Always following each cleaning vacuuming, then rinsing, another final vacuuming.
So, can anyone identify the nature of these marks, and a way to remove them? It's disappointing to go to all this effort to clean my records, only to have the obvious marks remain.
Are these marks mold, or super-stubborn-decades old-fingerprints?
here is a photo with the marks on track one.
Once my battery gets charged up a bit, I'll use my Nikon to try to get a better photo.
2. tried, in desperation, 100% alcohol
3. tried 3% hydrogen peroxide
4. tried scrubbing bubbles (definitely in desperation!).
Nothing I've tried has reduced the appearance of these marks--some which appear as outlines of fingerprints and others that don't. I'm using a Discwasher brush from the 1980's. Always following each cleaning vacuuming, then rinsing, another final vacuuming.
So, can anyone identify the nature of these marks, and a way to remove them? It's disappointing to go to all this effort to clean my records, only to have the obvious marks remain.
Are these marks mold, or super-stubborn-decades old-fingerprints?
here is a photo with the marks on track one.
Once my battery gets charged up a bit, I'll use my Nikon to try to get a better photo.