Voron 350 355x355mm PET+PEI Double-Sided Spring Steel Build Plate

In this review of the Voron 350 355x355mm PET+PEI double-sided spring steel build plate, the bottom line is simple: this is a practical upgrade for Voron 2.4 V2 350 owners who want a flexible, two-texture surface that covers both low-temp and high-temp filaments. The plate offers a carbon-fiber patterned PET side for PLA and PETG and a matte PEI side for ABS, plus a 0.4mm stainless steel spring steel core for flatness and toughness. It delivers convenience for removing prints and versatile adhesion options, though results vary with filament and prep.

Key Features

• Double-sided surfaces: PET side shows a carbon-fiber-like gloss and matte stripe texture that improves first-layer appearance for PLA and PETG.
• High-temperature PEI: the matte PEI coating tolerates up to 300C, making it suitable for ABS and other high-temp materials when used with an appropriate heated chamber or adhesive.
• Sturdy core: the 0.4mm stainless spring steel plate resists deformation and rust while remaining flexible enough to pop parts off easily.
• Wide filament support: recommended PET side for PLA, TPU, PETG and PEI side for PLA, PETG, ABS, TPU, ASA, PVA, PA, PC where higher bed temperatures are needed.
• Simple workflow: use isopropyl alcohol to clean, heat the bed for printing and cool before flexing to remove parts, with a protective film on the smooth side to remove before first use.

Who It's For

This build plate is aimed at Voron 2.4 V2 350 owners and experienced hobbyists who want a ready-made 355x355mm replacement or upgrade with two usable surface textures. It particularly benefits users printing a mix of PLA/PETG and occasional ABS who appreciate the convenience of a magnetic spring steel base and reversible adhesion options.

Users who primarily need absolute, consistent first-layer adhesion without tweaking may want to test first; some customers reported mixed adhesion results depending on filament and bed preparation. Those requiring an ultra-rigid, non-flexible substrate or who never print ABS might prefer a glass or rigid PEI-only solution.

Pros & Cons

Pros

• Versatile double-sided PET+PEI surfaces suit a wide range of filaments and print needs.
• 0.4mm stainless spring steel core offers flatness, rust resistance and flexible demolding.
• Textured PET surface improves first-layer appearance for PLA and PETG without extra surface prep.
• Clear usage notes make setup and removal straightforward for experienced users.

Cons

• Adhesion can be inconsistent across filaments and may require tuning or glue for ABS and some PETG batches.
• PET surface is consumable and will lose adhesion over time, requiring replacement or reconditioning.

Specifications

Our Verdict

The Voron 350 PET+PEI double-sided spring steel build plate is a solid value for Voron 2.4 V2 350 owners who want flexibility between low-temp PLA/PETG printing and higher-temp ABS use. Its 0.4 mm stainless steel core balances flatness and flexibility, and the two textures expand filament options; however, expect to tune bed prep and consider adhesives for the most challenging materials. Overall a useful upgrade for those who print multiple materials and want easy part removal.

Frequently Asked Questions

Do I need to remove a protective film before use?
Yes, the smooth PET side has a protective film that must be removed before printing to expose the intended surface.

Which side should I use for PETG?
The PET textured side is recommended for PETG and PLA for improved first-layer look and adhesion in most cases.

Will this plate fit my Voron 2.4 V2 350?
Yes, the 355x355 mm plate is designed for compatibility with Voron 2.4 V2 350 printers.