How to frame a Vintage Poster

Framing appropriately is crucial for the proper protection of a poster. Archival or museum framing is essential to preserve a poster from environmental elements. Here, we present the most relevant aspects to consider when framing a valuable poster.

If the poster is not in optimal condition, it is advisable that a restorer carries out linen backing on cotton linen or Archibond, also known as acid-free archival paper or Japanese paper. This stabilises the fragility of the paper. Before linen backing, the conservator will assess necessary restorations such as cleaning, repairing tears, fold marks, and paper losses, among others. This process is reversible and does not affect the value of the poster; in fact, it may increase it. The poster should never be glued to rigid surfaces, varnished, or laminated, as this devalues the artwork.

All materials in direct contact with the poster must be acid-free or have neutral bases. This includes mounting boards, corners, matting, and adhesive tape.

Direct exposure to UV rays can cause fading of inks in a poster. It is recommended to avoid direct sunlight or intense light sources.

There are various options for framing glass; it should always have protective properties against UV rays (conservation or museum glass/acrylic). Acrylic (Plexiglas) is similar to glass but lighter and less fragile. It is advisable for large-format posters. The glass should never be placed directly on the poster; using a mat is suggested to separate them and prevent direct contact. Framing with archival or museum materials is more expensive but ensures the protection and preservation of the poster.