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Catalogue

PEI filament

PEI filament is a printing material for 3D printers whose full name is polyetherimide. It is one of the advanced engineering plastics that are characterized by high performance. Its main characteristic is its high heat resistance, thanks to which parts made from it retain their shape and strength even at temperatures exceeding 170 °C. In addition, this material is mechanically strong, rigid and can withstand a wide range of chemicals such as oils or solvents. PEI is also inherently non-flammable, meaning it does not need added substances to resist ignition, and often meets stringent fire safety standards. In order to print from PEI, it is necessary to use a 3D printer capable of reaching high temperatures. It requires a nozzle temperature typically in the 350-400°C range and a heated substrate with a temperature of around 120-160°C. A closed and actively heated print chamber is also essential. This maintains a stable environment and prevents rapid cooling of the print, which could cause cracking or warping. The filament must be thoroughly dried before use, as it absorbs air moisture, which would adversely affect print quality. Thanks to these properties, it finds applications in demanding industries such as the automotive industry for engine compartment parts, the aerospace industry, electrical engineering for the production of insulators and connectors or in medicine for instruments that can be sterilised. It is therefore a specialised material for the production of functional prototypes and end parts that have to withstand high temperatures and mechanical stresses where conventional plastics such as PLA or PETG are not sufficient.

3D printer filament offer 3D pen filament refills offer

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