"The question is could you use imitation Permastone (marca 
registrada) to replace real Permastone."


Of course. I would have no qualms about it as long as the replication material functions the same way as the original, has similar vapor permeability, and matches in color, texture and molding detail.  

Jenn



--
**Please remember to trim posts, as requested in the Terms of Service**

To terminate puerile preservation prattling among pals and the
uncoffee-ed, or to change your settings, go to:
<http://listserv.icors.org/archives/bullamanka-pinheads.html>