The Prusa Pro HT90 heatbed has embedded high Curie temperature magnets. These magnets are able to firmly hold removable spring steel sheets.

Powder coating directly on metal makes it very hard to damage this build plate. If a heated nozzle crashed into it, the metal can dissipate the heat. Powder coating also gives the surface a distinct textured look that will be visible on your prints. The textured surface hides most of the mechanical damage caused by tools. Only the top of the small bumps can be scratched, which will not imprint on the bottom of the model. This surface is used on Prusa'a print farm, look at the printed parts you have on your printer for reference.

The PP sheet has a lightly textured surface finish similar to the Satin Powder-coated sheet.

WARNING

Never clean the Textured PEI Powder-coated spring steel sheet with acetone! Doing so will create microfractures in the PEI texture, which will make the surface deteriorate over time.

ATTRIBUTES

• Scratchproof, hard to damage
• Transfers texture to prints
• More forgiving Live Adjust Z setting
• No need for glue stick for PETG
• Prints automatically detach after sheet cools down
• First layer can be more squished compared to smooth sheets
• PLA prints with a small contact area may need a brim
• PLA prints with a huge footprint may warp
• Need to change Live Adjust Z if you also own Smooth PEI sheet
• Never clean with acetone