Notes:
Consumable parts, such as PEI sheets (smooth, textured, nylon, etc.) are not covered by warranty as the coatings are designed to diminish over time unless failure has occurred due to a defect in materials or workmanship. Cosmetic damage, including but not limited to scratches, dents, cracks or other cosmetic damage is also not covered by the warranty. Only defective sheets on arrival are covered by warranty.
As a result of the temperatures to which the plate is exposed during printing, its surface gradually becomes glossier or may develop smaller, duller areas. This visual change does not adversely affect the printing properties and is not considered a reason for a warranty claim.
Note that with the Original Prusa XL, the PA Nylon sheet wear is especially noticeable at the Z probing points, where the nozzle leaves visible marks on the surface. This does not affect the surface adhesion and overall printability. You can examine the marks in our knowledgebase article.
A new batch of the PA Nylon sheet will be released during July / August 2024. The new version will get a slightly rougher surface texture. This change will not affect the print sheet's functional properties. You can examine the changes in our knowledgebase article as well.
Old texture (left) vs new texture (right)
Glossier surface after print removal
Visible marks at Z probing points