The Best PEI Sheet for an Ender 3
Researched by Johnny Alto · last updated July 28, 2026
Short answer: The best PEI sheet for an ender 3 is the Comgrow PEI Sheet Magnetic Flexible Spring Steel (235x235mm). The long-standing budget-favorite PEI upgrade for the Ender 3 because it is inexpensive, the 235x235mm size drops straight onto the stock bed, and the textured PEI surface gives strong PLA and PETG adhesion with a pleasant matte bottom finish. The main things to weigh are size must be 235x235mm, textured vs smooth, magnet temperature limit, and re-level and re-set z-offset.
Comgrow PEI Sheet Magnetic Flexible Spring Steel (235x235mm)
The long-standing budget-favorite PEI upgrade for the Ender 3 because it is inexpensive, the 235x235mm size drops straight onto the stock bed, and the textured PEI surface gives strong PLA and PETG adhesion with a pleasant matte bottom finish. The magnetic base holds the spring steel securely, and flexing to release prints is dramatically easier than prying off glass. The honest limits: textured PEI is a consumable that can develop bald low-adhesion spots over a year of heavy use, the magnetic base has a real temperature ceiling (keep the bed under about 100 to 110C, since high-temp materials like ABS can weaken the adhesive magnet), and it is single-surface, so no smooth side for glossy bottoms.
Check price on Amazon Live price on Amazon. Representative image.The stock Ender 3 build surface (the old textured mat or bare glass) either wears out or makes prints a fight to remove. A magnetic flexible PEI spring-steel plate fixes both: prints stick during printing, then pop off when you flex the plate after it cools. This is for the Ender 3 owner tired of scraping stuck PLA or chasing bed adhesion. Here is the pick, a two-surface option, and what to check.
How do the best options for PEI sheet for an ender 3 compare?
| Pick | Product | Why it makes the list |
|---|---|---|
| Top pick | Comgrow PEI Sheet Magnetic Flexible Spring Steel (235x235mm) | The long-standing budget-favorite PEI upgrade for the Ender 3 because it is inexpensive, the 235x235mm size drops straight onto the stock bed, and the textured PEI surface gives strong PLA and PETG adhesion with a pleasant matte bottom finish. |
| Best of both surfaces | Comgrow PEI Double-Sided Magnetic (Smooth + Textured, 235x235) | A textured side for grip and matte bottoms plus a smooth side for glossy bottoms, effectively two plates in one. The smooth side can grip PETG too well without a release agent, and double-sided plates cost more. |
| Best made-in-USA stick-on | Gizmo Dorks PEI Sheet with 3M Adhesive (235x235) | Genuine thick US-made PEI that sticks directly to your existing glass or plate with quality 3M adhesive. It is a flat stick-on sheet, not a magnetic flex plate, so no pop-off flexing, and applying it bubble-free is fiddly. |
| Alternate dual-surface flex plate | HzdaDeve Textured PEI + Smooth PEY Build Plate (235x235) | Another dual-surface spring-steel option with a PEY smooth side that resists PETG sticking better than plain smooth PEI. PEY behaves differently and can need temperature re-tuning, and brand QC is less established than Comgrow. |
What should you look for in PEI sheet for an ender 3?
A few things separate a good PEI sheet for an ender 3 from a frustrating one: size must be 235x235mm, textured vs smooth, magnet temperature limit, and re-level and re-set z-offset. Weigh these before you buy.
- Size must be 235x235mm for a standard Ender 3, 3 Pro, 3 V2, or V2 Neo; newer V3 SE and KE beds differ, so check if you have one.
- Textured vs smooth: textured grips harder, gives a matte bottom, and hides bed imperfections, best all-round for PLA and PETG; smooth gives glossy bottoms and easiest release but is less forgiving on first-layer height.
- Magnet temperature limit: the magnetic base loses strength if run too hot, fine for PLA and PETG but marginal for ABS; for frequent high-temp printing use a stick-on sheet.
- Re-level and re-set Z-offset after installing, since the added plate thickness changes your nozzle gap.
Re-level after you install it
The mistake that ruins first prints on a new PEI plate is forgetting that it changes your bed height. A magnetic PEI plate adds a couple of millimeters of thickness on top of the stock bed, so your carefully-set nozzle gap is now wrong, and the first layer will either smear or not stick. After installing, re-level the bed and re-set your Z-offset, and give PEI a slightly higher first layer than you used on glass, since PEI grips best when the nozzle is not crushing the filament into it. Also remember the magnetic base has a heat limit, so keep the bed under about 100 to 110C to avoid weakening the magnet over time.
What are the best alternatives?
Comgrow PEI Double-Sided Magnetic (Smooth + Textured, 235x235)
A textured side for grip and matte bottoms plus a smooth side for glossy bottoms, effectively two plates in one. The smooth side can grip PETG too well without a release agent, and double-sided plates cost more.
Check price on AmazonGizmo Dorks PEI Sheet with 3M Adhesive (235x235)
Genuine thick US-made PEI that sticks directly to your existing glass or plate with quality 3M adhesive. It is a flat stick-on sheet, not a magnetic flex plate, so no pop-off flexing, and applying it bubble-free is fiddly.
Check price on AmazonHzdaDeve Textured PEI + Smooth PEY Build Plate (235x235)
Another dual-surface spring-steel option with a PEY smooth side that resists PETG sticking better than plain smooth PEI. PEY behaves differently and can need temperature re-tuning, and brand QC is less established than Comgrow.
Check price on AmazonBottom line: the Comgrow textured magnetic PEI is the cheap, easy Ender 3 upgrade that makes prints pop off; go double-sided for a glossy option or the Gizmo Dorks stick-on for high-temp printing. Mind the magnet's temperature limit. Pair it with our keyboard and hobby tech guides.
Frequently asked questions
What is the best PEI sheet for an ender 3?
Comgrow PEI Sheet Magnetic Flexible Spring Steel (235x235mm). The long-standing budget-favorite PEI upgrade for the Ender 3 because it is inexpensive, the 235x235mm size drops straight onto the stock bed, and the textured PEI surface gives strong PLA and PETG adhesion with a pleasant matte bottom finish.
What should you look for in PEI sheet for an ender 3?
Focus on size must be 235x235mm, textured vs smooth, magnet temperature limit, and re-level and re-set z-offset.
What is a good alternative to the Comgrow PEI Sheet Magnetic Flexible Spring Steel (235x235mm)?
The Comgrow PEI Double-Sided Magnetic (Smooth + Textured, 235x235). A textured side for grip and matte bottoms plus a smooth side for glossy bottoms, effectively two plates in one. The smooth side can grip PETG too well without a release agent, and double-sided plates cost more.
Related buying guides
- Air Purifier for Allergies
- Air Purifier for Pets
- Air Purifier for Mold
- Air Purifier for a Bedroom
- Air Purifier for Smoke
This is a research-based buying guide, not a personal hands-on review; recommendations reflect community consensus and verified buyer reviews. Prices and availability are subject to change, so always confirm on Amazon. As an Amazon Associate I earn from qualifying purchases. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
← All guides · How we research · About · Affiliate Disclosure · Privacy Policy · Contact