Wham Bam textured PC build surfaces are our high-performance, custom-blended Polycarbonate (or PC) build surface ideal for low-temperature filaments like PLA and TPU, economy mode settings or low heat beds! The texture is fine and is created by huge rollers with an etched pattern right after its extruded, NO sprayed on texture here. Our PC build surface is 0.4mm thick and pre-backed with 3M adhesive so it takes seconds to install.