Epson Giclées claim 110 years of true color fastness. Iris
Giclées, another major manufacturer of Giclée printers, can
produce a sharper and cleaner image than Epson, but their
longevity is compromised. Iris is now quoting about 38-40
years for their Giclées. Now, these estimates on how long
the pieces will survive are of course dependent upon a fairly
decent environment and the assumption you know better
than to leave your painting out in the sun all day.
The next technique of reproduction is the Serigraph.
Serigraphs are a hand made product, usually more complex
to create than Giclées because an actual master-printer has
to take the original image and split it into different color
Each color is attuned to a fine mesh
screen, similar to a screen you would use for outdoor patios,
but with a much finer mesh.
The master-printer then has holes either cut or
opened on the screen, using different tools and acids, where
they would like certain colors to appear. After the screens
are made the printer will take canvas or paper, lock it into a
fixed place, then use the first screen to apply color on to the
canvas or paper.
After the screens have been set onto the canvas,
inks or well paints are run over them; only where the holes
have been made will color appear. The coloring process is
built layer upon layer and sometimes serigraphs can have
150-170 screens, each one tuned to a different color. The
master-printer has to be quite a genius to figure out which
colors have to lay on top of which. When done with oil
paints, serigraphs will start to look very much like an original
oil painting.
Serigraphs are limited in their color gamma to the
number of screens used.  They also cost a lot more to
produce and as a result the individual piece cost is usually