Hi Mad caravanner
the paper is called waterslide decal paper for inkjet printers. you don't have to treat it it is ready to print on. what you have to do is chose a item you wish to have as a transfer, print it onto the waterslide paper and leave to dry, cut the item out soak it in water for 20 sec and then place onto your model. leave for 24 hours to fully dry the background will dry white, then seal it with a coat of oil based varish if you want the background to go clear or waterbased varish if you want the back ground to stay white. try Amazon they sell the paper and varnish, or
www.lazertran.com. hope that helps