Complex sentence: Once he had the cartographic source, he needed a medium on to which he could print the map that was quiet to unfold, would not disintegrate when wet, maintained its integrity when folded at the crease line and could be concealed in very small places.
Split into simpler sentences: Once he had the cartographic source, he needed a medium onto which he could print the map. This medium needed to be quiet to unfold, would not disintegrate when wet, maintained its integrity when folded at the crease line and could be concealed in very small places.