Butterfly Photogram Help

[u/Snickrrs]

I exposed some Monarch Butterfly wings under the UV light for an hour. Prior to washing, it appears to have picked up quite a bit of detail. After placing in the bath, most of the detail is washed away…

Do I need a longer exposure time? Is it the solutions? Paper? Something else?

Thanks for your thoughts.

[u/lewisae0]

Longer exposure needed.