I trying to locate a material to make casts of vascular structures.
I've seen some used in the past; one is more latex-like, the other
more acrylic-like. Ideally they should have viscosities that are
similar to blood so extreme pressures don't distort the geometry.
Also a protocol for digestion of the tissue that reveals the vascular
structure would be of help. I've seen pictures of a vascular network
cast placed over the bones of a joint, and would like to be able to
something similar.

I will post a summary of replies.

Thanks in advance,
John Cummings

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John F. Cummings
Ethicon Endo-Surgery JCumming@EESUS.JNJ.COM
4545 Creek Rd. V: (513) 483-3370
Cincinnati, OH 45242 F: (513) 483-8285
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