Digital BW, The Print

Is this the Lascaux product to use on matte papers to provide 
protection?

http://www.savoirfaire.com/savoirfaire/Ftp/Template.cfm?
Tname=design.cfm&P=3780&QTY=0


And have you used this Lascaux UV product? (It comes in Gloss and 
Matte):



http://www.savoirfaire.com/savoirfaire/Ftp/Template.cfm?
Tname=design.cfm&P=3773&QTY=0

Where do you buy your Lascaux products?

And since I have your attention, I mays as well ask a question I've 
been think about recently:

What densitometer do you use? And what would you recommend buying on 
the "used" market?

Thanks for all your help (again!),

Scott