Textured steel sheet | Prusa Knowledge Base

The Original Prusa magnetic heatbed is designed to hold a removable, double-sided, flexible spring-print sheet, specifically designed for easy removal of printed objects from the print surface.

The powder-coated sheet, also referred to as the textured sheet, has its surface covered with a special polymer (Ultem PEI) to ensure perfect adhesion. These have been used in our print farm for many years and are perfect when printing a lot of high-adhesion filaments like PETG, and are also ideal for printing flexible filaments (TPU). It has a rougher texture than the Satin sheet and is more durable with some filaments than the Smooth sheet.


Textured Sheet	The underside of a printed object

Print sheet color

The exact color depicted in the e-shop and our knowledge base may differ from yours. All sheets are checked and verified to be within tight specifications. These specifications are both considering the manufacturing method and the sheet's function (adhesion and durability used with certain material types), but not the cosmetic aspect of the sheet or pattern left on printed parts. We can not guarantee the pattern left on your printed objects will match perfectly from sheet to sheet.

Main attributes

Textured finish.
Double-sided! Both sides can be used interchangeably.
Thinner than its smooth counterpart.
Ideal for extensive printing of PETG, CPE, TPEE/TPU.
No need for glue-stick with flexible filaments (TPU/TPEE).
Prints automatically detach after the sheet cools down.
To be cleaned with ~90% IPA or denatured alcohol when cold. Do not use anything made for skin! It can contain oils/sugars that ruin adhesion.

See our blog article on how to print on a powder-coated sheet.

Considerations

Never clean the sheet with acetone! It will deteriorate the surface!
Never apply ABS juice to it!
Prints from ASA, ABS, Nylon, and PC Blend require the application of a glue stick (separation layer).
The live Z value needs to be readjusted when switching sheets if your printer uses a PINDA for bed leveling. See Steel sheet profiles.
Not scratch-resistant. Do not use metal spatulas, etc., to remove the prints. We recommend printing a plastic spatula, like this one.
Small PLA prints may require a Brim.

Consumable parts, such as print sheets (satin, smooth, textured, etc.), are not covered by warranty as the coatings will 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.

Supported printers

Note that the sheets for the CORE One and the MK series sheets are interchangeable, just with different designs.

CORE One
XL
HT90
MK4/S, MK3.9/S, MK3.5/S, MK3/S/+, MK2.5/S (Also offered as Factory second)
MINI/+ (Also offered as Factory second)

Filaments

We have done a lot of testing and compiled our results for you to use. To easily see how to prepare your sheet for any filament type, please see our Material table.

Prints don’t stick

If your print surface is perfectly clean and all grease has been removed by wiping it with a paper towel soaked in isopropyl alcohol, ~90%. Also, make sure the first layer height is set up perfectly.

If your prints still do not adhere reliably to the print surface, try to wash the sheet in warm water (not hot!) with a few drops of liquid dish soap (not hand soap). This should not be done often, and do not submerge the sheet completely in hot water, but this can clean away oils/sugars that are not affected by rubbing alcohol. However, the textured sheet is not waterproof, so consider this a last resort, which should not be done often.

For more info on how to deal with adhesion issues, please see First layer issues.

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12 comments

raylepper

•

For years I have cleaned my PEI sheets with 90% IPA and paper towel. But when printing PC Blend, for instance, I noticed white discoloration on the bottom of the part. After a light cleaning with Dawn dish soap and warm water, The white discoloration was gone. I believe that the white discoloration was tiny particles of paper towel left behind after the IPA wipe. From now on I will clean with IPA and a microfiber cloth. Doing this between successive PC Blend prints has stopped the white discoloration completely. I never new.

Reedy

•

>bu this can clean away oils/sugars that are not affected by rubbing alcohol.
^ bu is a typo for but

J.J. Kucharczyk

•

Today I printed PETG for the first time for a test on the MK4. After printing there were small pieces of filament left in two places that I can't remove. I tried using a plastic spatula and a metal spatula which scratched the surface slightly. How can I remove these residues. I understand that I should use glue for PETG prints next time. If I rotate the plate, won't the PETG residue damage the hotplate? Best regards.Edit: Isopropylalkohol 99% is good for this?

Darsch

•

This article states "To be cleaned with ~90% IPA or denaturd alcohol when cold." but I didn't really listen to the cold part. Not sure if this is the main reason for it needing to be cold, but I was in a hurry and cleaned my textured PEI sheet when it was very hot, close to the starting 85c for PETG. Obviously I had some quick evaporation, but I just really loaded up the paper towel with 91% alchohol, no additives. Oddly, I immediately had adhesion issues after this cleaning and I thought my z height needed to be adjusted a bit because it had been working for several days printing the same project. I tried adjusting a number of different things, but in the end the water a dish soap fixed it. I am afraid to test my theory, but if using alchohol on a hot sheet actually causes adhesion issues, you might want to emphasize that a little more in the reason for why the sheet is supposed to be cold.

Buxton

•

Agreed, I run into the same thing

Zacharisa

•

Would using Sinol cause long-term damage to a powder-coated sheet?

Sinol:
isopropanol 1–5 %
butanone 2 %
methyl isobutyl ketone 2 %
ethanol 91–95 %

Butanone is also known as Methylacetone, so I would guess it could have some adverse reaction with the powder coat?

Marina Curzi

•

We have not tested this product with the sheet, but indeed some of the components could damage it. It is better not to use it.