MATCH THE MATERIAL TO THE SURFACE

PLA & PETG print-sheet compatibility

Find the preparation and release guidance for your Prusa sheet before starting a print.

Manufacturer instructions checked October 8, 2026.

Scope: Original Prusa MK4 / MK4S with genuine Prusa sheets made for those printers.

Choose the sheet variant specified for your printer. This finder covers standard PLA and PETG; other printers, third-party sheets, filled blends, and specialty formulations are outside this verified set.

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Compare all six combinations

Manufacturer listed

PLA on Prusa smooth PEI

Prusa recommends smooth PEI for PLA, particularly parts with a small contact area.

Prepare the surface: Clean the cold sheet with about 90% isopropyl alcohol (IPA) and an unscented paper towel.
Release layer: A glue separation layer is not specified for standard PLA.
Cool and remove: Cool to room temperature, remove the sheet, and flex gently. Avoid tearing the PEI film.
Sheet care: Keep fingerprints and grease off the printing area.

Read Prusa’s instructions

See this combination in the full table

How to read the result

Manufacturer listed means Prusa describes the combination as suitable. Listed with adhesion caveat highlights a specific limitation. Separation layer required is conditional guidance: for smooth PEI and PETG, use the protective layer and read the manufacturer’s warning.

These labels summarize published instructions, not our own print tests or a guarantee for every formulation and part geometry. A combination outside this finder is not evaluated, rather than automatically incompatible.

Use the current printer and filament profiles for bed and nozzle temperatures. This finder does not supply temperature settings. For prints with a large contact area or stubborn adhesion, review Prusa’s removal and separation-layer guidance before printing.

Full compatibility reference

All six combinations remain visible here. On a narrow screen, scroll the table sideways; keyboard users can focus the table region and use the arrow keys.

Genuine Prusa sheets for MK4 / MK4S · checked October 8, 2026
Filament and sheet	Manufacturer guidance and sources	Preparation and protection	Cooling and removal
PLA Prusa smooth PEI	Manufacturer listed Prusa recommends smooth PEI for PLA, particularly parts with a small contact area. Prusa: smooth PEI sheet Prusa: PLA guidance Prusa: sheet handling and print removal	Clean the cold sheet with about 90% isopropyl alcohol (IPA) and an unscented paper towel. A glue separation layer is not specified for standard PLA. Keep fingerprints and grease off the printing area.	Cool to room temperature, remove the sheet, and flex gently. Avoid tearing the PEI film.
PETG Prusa smooth PEI	Separation layer required Prusa prefers textured or satin for PETG. Bare smooth PEI can bond too strongly and be damaged. Prusa: PETG guidance Prusa: smooth PEI sheet Prusa: print-surface preparation Prusa: sheet handling and print removal	If using smooth PEI anyway, follow Prusa’s cleaning instructions and apply a thin PVA glue-stick separation layer before printing. Glue is a protective release layer here, not simply an adhesion booster. Prusa advises applying PVA glue to a cold surface to help keep the layer thin.	Cool to room temperature, remove the sheet, and flex gently. Avoid tearing the PEI film.
PLA Prusa textured powder-coated	Listed with adhesion caveat PLA is supported. Prusa identifies smooth or satin as better for PLA adhesion; small parts may need a brim. Prusa: textured sheet Prusa: PLA guidance Prusa: sheet handling and print removal	Clean the cold sheet with about 90% isopropyl alcohol (IPA) and an unscented paper towel. No PLA glue separation layer is specified in the linked sheet guidance. Never clean this coating with acetone or put the sheet in a freezer.	Cool to room temperature; the print should release. Flex gently if needed; avoid metal scrapers.
PETG Prusa textured powder-coated	Manufacturer listed Prusa specifically recommends the textured sheet for regular PETG printing. Prusa: textured sheet Prusa: PETG guidance Prusa: sheet handling and print removal	Clean the cold sheet with about 90% isopropyl alcohol (IPA) and an unscented paper towel. No PETG glue separation layer is specified in the linked sheet guidance. Never clean this coating with acetone or put the sheet in a freezer.	Cool to room temperature; the print should release. Flex gently if needed; avoid metal scrapers.
PLA Prusa satin powder-coated	Manufacturer listed Prusa lists satin for PLA. Small parts may still need a brim. Prusa: satin sheet Prusa: PLA guidance Prusa: sheet handling and print removal	Clean the cold sheet with about 90% isopropyl alcohol (IPA) and an unscented paper towel. No PLA glue separation layer is specified in the linked sheet guidance. Never clean this coating with acetone or put the sheet in a freezer.	Cool to room temperature; the print should release. Flex gently if needed; avoid metal scrapers.
PETG Prusa satin powder-coated	Manufacturer listed Prusa identifies satin as suitable for PETG and recommends it over bare smooth PEI. Prusa: satin sheet Prusa: PETG guidance Prusa: sheet handling and print removal	Clean the cold sheet with about 90% isopropyl alcohol (IPA) and an unscented paper towel. No PETG glue separation layer is specified in the linked sheet guidance. Never clean this coating with acetone or put the sheet in a freezer.	Cool to room temperature; the print should release. Flex gently if needed; avoid metal scrapers.

Make the first layer repeatable

Use the first-layer troubleshooting checklist to change one variable at a time, or compare the materials in our PLA vs. PETG guide. Record the sheet, material, preparation, and result in your print log.