The RP System is a handy packaging system that protects artefacts from retro-gradation, creating an atmosphere without oxygen, moisture or corrosive gases, which are the main causes of metal oxidisation.
RP System Type A
Removes: Oxygen, moisture and corrosive gases
Mitsubishi RPA ‘stops the clock’ on the sources of corrosion and oxidation of metals through a chemical reaction that removes oxygen, moisture and corrosive gases from sealed containers. It is used in metal conservation and other applications where a low RH is required i.e. geological specimens. It may also have applications for the storage of audio tapes where oxygen and moisture are primary sources of deterioration. Research is underway to determine the range of applications.
RP System™ Type K
Removes: Oxygen and corrosive gases
This type of scavenger should, for example, be used for organic objects or for metals that are combined with organic material such as wood or bone. RP type K can also be used for leather, paper and textiles etc.
It does not affect the moisture in a container to protect photographs, films, dyed products from discolouring and fading. (U.V. Light damage is stopped with the absence of oxygen). RPK also prevents mildew and insect damage to paper, textiles and wooden artefacts.