Ultra Violet Light Protection
Many artworks brought to John Jones for conservation and reframing have been damaged by ultra violet light. This occurs subtly over time and is often difficult to notice at first. The symptoms include faded colours, yellowing, bleaching of paper fibres and the darkening of certain pigments. Without protective glazing, paper and other base materials can also become brittle and degrade. The effects are cumulative and lasting.
Since ultra violet rays are present in both natural and artificial light, it is not enough simply to move your frame away from direct sunlight. We recommend conservation picture glazing with a UV filter of 99%, particularly for watercolours, historical pieces and photography.