Michael uses several types of high quality handmade paper. All paper qualities are acid free, neutral, alkaline buffered with calcium carbonate and contain no optical brighteners. They meet the requirements for permanence according to ANSI/NISO Z 39.48-1992 and DIN ISO 9706, such as:
- Fabriano Rosaspina made of 60% cotton and 40% cellulose fiber , 285g/m2 with watermark;
- Hahnemühle made from 50% cotton and 50% cellulose fibers and up to 300g/m2.