1. The natural tendency of skin is to bend and curl, and it will not stay flat unless mounted to a solid support. Therefore, it is recommended to use it as soon as possible.
2. Vellum is EXTREMELY HYGROSCOPIC (i.s.
absorbs moisture from the air). It needs a temperature which is fairly warm and constant so ideal relative temperature is 15 °C.
3. Parchment leather is a natural material sourced from animal hides, and as such, each hide possesses its own unique characteristics.Variations in leather texture should not be viewed as flaws but rather as inherent.
4. Parchment leather, made from the natural skin of goats or calves, may exhibit dents, scars, scratches, wrinkles, or small holes, as well as blemishes and neck wrinkles, which are entirely normal characteristics in some hides.
5. If vellum is kept in a very dry environment, the skin will start to shrink unevenly and become fragile and brittle, rendering it unsuitable for the particular project.
6. We recommend gently rolling up parchment skins (head to tail, along the spine) in a stable environment to protect them against moisture.
7. Before using the parchment, flatten it by mounting it on a board for work; remember never to use heat to press it flat.
8. The average thickness of parchment hides is 0.5to 0.6mm, varying depending on which part of the skin is utilized. Skins are thicker along the spine, haunches, and neck, but thinner where they cover the ribs. Depending on how your skin has been cut, it might include both thick and thin sections.
9. "Parchment leather clearly has two sides: the hair side often bears marks of the follicles and can be quite yellow, while the flesh side tends to be smoother, whiter, and usually more useful."
10. For the long-term preservation of parchment leather, the ideal temperature range is 10–15 °C (50–59 °F) with a relative humiditylevel of 30–50%. The ideal storage and display environment is oxygen-free condition, as oxygen prevalence has been shown to react with collagen over time, leading to increased brittleness of parchment.
I hope you've gained valuable insights about working with parchment leather. if you're interested in vellum sheets or parchment hides, you could check it out here.