There was an interesting article in the Guardian recently about the difficulties that the V&A Museum are facing when it comes to preserving plastic objects: http://www.theguardian.com/artanddesign/2015/may/19/va-conservators-race-to-preserve-art-and-design-classics-in-plastic
The rise in technology has led to the creation of new materials which are used to create art and objects, both decorative and every-day. However, we know very little about the longevity and the process as to how these materials will change. This has become apparent with some of the plastics in the V&A’s collection. Objects such as the Blow chair, designed in 1969, and the Stephen Willats Mini dress, also designed in the 1960s, are starting to degrade to the point beyond repair, and the only way to protect them to keep them in dark, temperature controlled stores.
The common assumption with plastics are that they are a stable substance, when in actual fact they are very brittle. The reason plastic is brittle is because plasticers are used in the process to make it malleable. Unfortunately, plasticers have a habit of leaking, making the object sticky, attracting dust and dirt. This stickiness also makes it very difficult to clean as brushes and water only further damage the object. Plastics are also susceptible to changes in temperature, humidity and light, which can lead to discolouration, decaying to a powder, warping, cracking and shrinking – all the things that we try to prevent happening to our collections as a whole.
As plastic is still a relatively new material we do not know as much as we would like in order to prevent damage to it. This is why the V&A has partnered with Imperial College London to try to see how we can prevent further damage as well as its causes. With most other materials that can be found in historic house, there is a history of research that has gone into how we can best look after them.
Temperature, light and relative humidity are monitored both weekly and biannually. This ensures that we keep an eye on things that might be in danger of deteriorating and we can then assess how best to limit any damage. Humidity causes objects to shrink and grow that leads to stress fractures and cracks as can be seen on the cabinet at the Top of the Stairs. Light not only causes objects to fade but also causes threads to fray and eventually tear. Light also causes a chemical reaction whereas the object will actually change colour – like in the drawing-room where the rose-pink sofa has faded to a murky green colour.
As I mentioned a couple of weeks ago, (https://standennt.wordpress.com/2015/05/19/deceptive-dust/) dust is another factor that damages the collection as it discolours objects but also forms a hard surface which not only attracts more dust but is also very difficult to clean off without damaging the object.
This is why knowledge and a good cleaning routine are so important. We dust and vacuum the house once a day plus every object gets an annual deep clean every year. It is also why the house may seem cold or dark as we try to preserve it for the future.