Silicone sleeve features:

These cases will keep your nozzle clean and free of burnt on blackened plastic.

These also offer a huge boost in temperature stability, particularly if you use high airflow cooling around the nozzle to cool the print.

Made of a heat-resistant, non-stick silicone material, rather than molten plastic.

This really helps with sticky materials like Co-Polyesters and filled materials that like to build up on nozzles.

anti-high tempature for PLA/ABS 3D printing

Item Type: Heated Block Silicone cover

Model Number: V6/PT100 Silicone cover

For heating block size:

Non-offical (20mm*16mm*12mm)
Offical (23mm*16mm*12mm)

Material: silicone

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Dimensional drawing: