Before entering a display case, a material must demonstrate that it does not damage what it is meant to protect. The Oddy Test is the internationally recognised test proving that a product is chemically safe for artworks, artefacts and documents.

Propadyn Museart passes it. For the conservator, this means one concrete thing: a documentable reference to submit for approval, with no grey areas.

Unlike common silica gel — which merely absorbs — Propadyn Museart stabilizes relative humidity at a precise percentage, between 35% and 80%, set prior to delivery: it arrives ready for use, with no pre-conditioning required.

It absorbs and releases moisture rapidly, with a resolution of 3%, maintaining a constant value even as the surrounding environment fluctuates — in the display case, the crate or the packaging, over extended periods and without electrical power.

Once installed, Propadyn Museart protects autonomously: no electricity and no parts to monitor. It works in any climate — from desert to tropical conditions — and in synergy with existing air conditioning allows for significant energy savings.

For those managing loans, transport and archives, this means reliability even where there is no power outlet.

Composed mainly of natural materials and packaged in Tyvek, Propadyn Museart releases no liquids or dust — the most common drawback of many desiccants — and is not deliquescent: it can be used in any condition.

It is resistant to volatile organic compounds (VOC) and certified flame retardant. It is manufactured using a low CO₂ emission plant and, on request, can be regenerated following a precise protocol: sustainable across its life cycle, not only in its materials.