I have spent some time working on what you can use the Crystal Kote Fixative Spray 400g for and, have found that it is designed to be able to be used on many various medium watercolour, Chalks, Pastels, Crayons plus other surfaces.
It is used to protect the medium you have used it is acid free, prevents yellowing and anarchically safe. My guess would be that you could possibly preserve newspaper articles with it.
The product is very simple to use simple work in a well ventilated area (worked outside) and spray lightly over your project and that is all there is to do.
The image below is of a Pan Pastel project from a Stencil Girl, stencil designer that I have completed and found that the pastels just don't set as they are a powder type product a light spray of the Crystal Kote and no more are the pastels coming off on everything.
I hope you have enjoyed my blog post share and the information on Crystal Kote, if you would like have further information on creating with this product please contact myself or Helmar!
Kim