How to protect from hand oil stains?

[Fullux]

Howdy all,

 

I've been curious about thia for a while, but many of my specimens have been darkening as a result of skin oils getting in to the specimen from handling. Is there any way to protect them from this, like something I could apply to them that would protect them while also not discoloring or altering them?

[hadrosauridae]

the first option would be to wear gloves while handling.  If you dont want to do that, then you could put a coating of either Butvar B-76 or Paraloid B-72 on it, but that could alter the color too.

[Jaybot]

What hadrosauridae said.  Not much to prevent skin oils other than not touching them as far as I know.

And yes, Paraloid B-72 changes the shade/color (some less, some more) on every fossil I've done so far.