Most papers that are archival were originally created for use in printing but papers such as Stonehenge became very popular among Coloured pencil Artists because of it's Archival properties. Archival papers are lightfast (normally compared on the 'Blue Wool' scale basis) and this means that fading will not occur over time or will be much less noticeable over a period of time than those that are not lightfast. Ursus is not Archival but it can be protected in many ways if you prefer to use this or any other paper that is not Archival. If you are framing your Artwork, framing it behind a UV protected/museum quality glass will offer this protection, this will be more expensive but gives peace of mind. If you are covering the whole sheet of paper using lightfast products such as Luminance Coloured pencils, the paper is no longer exposed and the fading is not an issue. Using a UV fixative can offer some protection but not full protection.
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