Highest safe temperature for a V6 E3D hotend

[Nylkos]

Considering my next project which include recycling and making my own filament.

I have access to a lot used Lexan… so perfect for recycling... however, Lexan or polycarbonate have a really high melting point. From my web research, roughly 300C.

Thanks you.

[WalterSKW]

E3D V6 and Volcano are fit for at least 320°C. All metal hotends.
The caveat is the thermistor. The standard thermistor is limited to something like 290°C.
If you want to print PC (as I do), install a PT100. can handle up to 400°C.

Take care that everything is well installed : use of a good thermal paste (I use arctic Silver) for the heatbreak in the heatsink, and a good fan. Also plastic components (partcooler shroud?)near the hotend need some attention for the heat (radiation). Covering the side to the hotend with some aluminum tape helps a lot.

[Nylkos]

Thanks you for your help.

[PDBeal]

This topic makes me wonder what the Silicon Sock is rated for too in terms of max temperature.