>Andrew-
>
>I managed to stop the inevitable fading of the Philippine Conus
>pertusus (which happens even in the dark) by spraying them with
>WD40.   It worked where nothing else would.   You might try it; it
>can't hurt.
>
>Cordially,
>Linda Bush


Thanks!

I wonder what the WD40 ingredient is?

I generally use paraffin oil on specimens, as it is colorless,
scentless, inert, doesn't braek down and protects the shell from
airborn acids (especially important when specimens stored in
particleboard-based cabinets, which release formic acid). BUT it
din's stop the Exilia fading. Might just try WD40... this could be
applied along with paraffin.

I have found a good way to keep periostraca soft and prevent peeling.
Especially important for hairy or velvety ranellids and capulids. I
use the same mix I use for preserving chitons... glycerine dissolved
in ethanol. Just remove any excess. It's water-soluble, so can easily
be soaked out if necessary. Useless for treating shelly surfaces, as
it does not soak in at all.
--
Andrew Grebneff
165 Evans St, Dunedin 9001, New Zealand
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Seashell, Macintosh, VW/Toyota van nut