Each spool is packed in an aluminum vacuum bag with a ZIP lock and contains a silica gel

which means it is chemically resistant

Material: Stainless steel

Reasons to choose

PrimaCreator - PrimaFil PEI Ultem Sheet 500x500mm - 0.5mm Timing Belt Each spool is packed inPrimaFil PEI Ultem Sheet 500x500mm 0. 5mm PEI Ultem (Polyetherimide) from Prima Filaments is a reusable, relatively maintenance free surface for all filament types. No need for additional adhesives such as glue or tape. PEI appeals due to its "no surface prep" conditions, making it convenient to work with. In addition, printing on PEI requires no support as objects seamlessly adhere directly to the surface. How to use PEI PEI is easy to cut to size