Heavy Kozo is an excellent paper choice for platinum/palladium prints, cyanotypes, van dykes, kallitypes and most other hand coated processes. It has a natural white color, smooth surface, and wove texture with no laid lines. When printed in platinum/palladium, this paper prints deep blacks with smooth mid-tones and highlights. The kozo fibers have a characteristic surface similar to silk fabric. Heavy Kozo does not have as much sparkle as the Light Kozo, but this heavier paper has a light satin or velvet-like sheen. This paper coats well with either a brush or coating rods, although most people will probably find that brush coating is preferable. At 90 grams/ square meter (gsm) weight it is about as thick a light cardstock. This paper is very strong when wet. The paper is made from 50% kozo and 50% abaca. Kozo is the inner bark of mulberry tree seedlings, producing a naturally white paper fiber which is very strong and long lasting. Kozo is one of the most important fibers in traditional Japanese papermaking. Abaca is also known as "manila hemp", and it has a long history in Asian papermaking traditions. Abaca is considered the strongest commercially used plant fiber. Also consider Light Kozo, a similar but lighter weight Japanese paper.