The finished prints should be stored away from any dust, UV light, humidity and acidic ambiance.
We advise you to use protection varnishes which are specifically designed for the photography or the graphic arts. They are easy to handle in the spray form and offer a good protection against UV and abrasion.
Please do not use spray varnishes for paint protection, as they may lead to a milky aspect of the treated surface.
The prints should be stored in archival boxes with interleaving sheets based on crystal paper, or polyethylene / polyester film. Please pay special attention to the mate papers, as they are particularly sensitive to abrasion and handling.