Prusa Textured powder-coated sheet steel for MK3 and MK4

The powder coating directly on the metal makes it very difficult to damage this build plate. When a heated nozzle penetrates it, the metal can dissipate the heat. The powder coating also gives the surface a pronounced textured look, which will be visible on your prints. The textured surface conceals most of the mechanical damage from tools. Only the tops of the small bumps can be scratched, which does not show on the underside of the model. This surface is used on our print farm. WARNING: Never clean the textured PEI powder-coated spring steel sheet with acetone! This will create microfractures in the PEI texture, causing the surface to deteriorate over time.