How great are mounts? What powers they possess, how magically they can transform even a simple scribble into a beautiful object of desire. How they cause people to fight to the death! They have real power, it’s well known. But it must be the right mount, right! Not any old mount will do.
According to the grandmaster picture framer who taught me, every picture has its mount in waiting and every mount has its picture in waiting! The more I experience them the more I understand it to be a true facet of their nature.
The reason mount-cards are used to mount drawings and watercolours does not lie exclusively in their transformational powers, but because they also perform an essential function.
Mount-card keeps the paper away from the glass thus allowing air to flow freely across the paper’s surface. This stops the build-up of moisture, and if you didn’t know, moisture doesn’t like paper, it has the rather nasty habit of damaging it.
Mount-card should be PH neutral as Lignin not treated and removed will react with the paper and produce acid, and acid doesn’t like paper either, it doesn’t care for beautiful scribbles even if they blemish the paper’s surface with spirit and beauty.
But that is not all! Frames must not be sealed so tightly that air cannot circulate. That is where a skilled pair of picture framer’s hands come in to play.
And that folks is just another day in the life of a well-put-together common-and-garden, mounted picture in a frame and also an explanation as to why paper turns brown over time.