Digital BW, The Print

>... on various fine art Matte papers...
> would love to know what people like to use to protect,

The most effective protection is glass or acrylic.

To protect matte paper at least a little, I use Lascaux Fixative solvent
based spray.  

The water-borne coatings can protect matte paper better, but I don't like
using them.


> develop Dmax 

On matte paper water-borne coatings can do this.  I don't recommend these
for most people, however.


>...I have tried PremierArt Print Guard and like it on glossy 
>and semigloss papers, but not particularly well on matte papers.

I agree.

>Any great results on these papers with a specific treatment?

My current favorite is PremierArt Print Shield sprayed onto Epson Premium
Semimatte.  For serious matte work, I always display under glass.

Paul
www.PaulRoark.com