Digital BW, The Print

Do either Hahnemuhle FineArt Baryta 325 or Gold Fibre Silk need a
spray sealer to protect the surface? If so, which one do you
recommend? I'm assuming a solvent spray is best?

I keep my B&W photos mostly in archival storage boxes, and the prints
I display are all indoors. I use a 2400 with K3 inks, and occasionally
use an MIS ink in the yellow position.

Thanks,
George Le Masurier