Food-safe filament for parts in oven  

What temperatures must this withstand?  If it gets too hot for thermoplastics you may do better priting a mould for casting a resin part.

Cheerio,

RE: Food-safe filament for parts in oven

Technically, 3D printed parts are never food safe as they are made up of layers with tiny gaps in them where bacteria can live and grow.  But you'll need to do some heavy research to find what types of plastic are safe for use in an oven as, even though the part is unlikely to come into contact with the food, it may release particulates into the air which can settle on the food.  I doubt any filament based plastics will be of any use because of the temperatures they will endure in an oven.  I suspect in the long run you'll be better off searching for a retailer with spare parts in stock! (Ebay?)

RE: Food-safe filament for parts in oven

very true, I am aware of all what you describe and yes, these parts will never get in touch with food...actually, these parts won't even get close to the food as they are between the metal door and the outside glass...

bottom line, even if it is not extra food-safe, is there any material that can withstand temperatures close to 300 C?

thanks for your reply!

RE: Food-safe filament for parts in oven

what about printing this in resin? do you think it would be a better option? I also own a resin printer

The only high temperature resistant printing resin I know of is Phrozen TR300 but I don't think it goes that high.  There are several specialist epoxies that would take the heat if you printed a mould...

Cheerio,

RE: Food-safe filament for parts in oven

Posted by: @sopis

bottom line, even if it is not extra food-safe, is there any material that can withstand temperatures close to 300 C?

If you think it through, any plastic that can cope with 300C will not be meltable in a 3D printer

RE: Food-safe filament for parts in oven

is there any material that can withstand temperatures close to 300 C?

If it is a self cleaning oven, they can get a lot hotter: well over 500C.

RE: Food-safe filament for parts in oven

damn that is so true 😀 I did not think my question through...well I am getting clueless as what to do :/ worst case, I can get some metal pieces and shape them accordingly...let's see...

thanks all for your replies

RE: Food-safe filament for parts in oven

The Essential Guide to Food Safe 3D Printing | Formlabs

https://formlabs.com/blog/guide-to-food-safe-3d-printing/

RE: Food-safe filament for parts in oven

Have you thought about buying a used one and using it for parts?

You can prototype - get the shape right - in plastic then send the file(s) to a metal-printing service for production.

Cheerio,

RE: Food-safe filament for parts in oven

Print a mould and cast the model in 2 component silicone rubber. This is a thermohardener and it is happy in 200+degC.

RE: Food-safe filament for parts in oven

Hi there, have you used the TR300 Ultra-High Temp Resin? Do you have a Profile for the SL1S you would be willing to share?

Thanks!

RE: Food-safe filament for parts in oven

Typically around 70-80°C (158-176°F) for continuous use but can withstand higher temperatures for short periods. PETG is generally considered food-safe, especially if sourced from reputable manufacturers. 

RE: Food-safe filament for parts in oven

Posted by: @3delight

Technically, 3D printed parts are never food safe as they are made up of layers with tiny gaps in them where bacteria can live and grow.  

This has been proven wrong.   Anywhere bacteria can get. So can warm soapy water.

https://lt728843.wixsite.com/maskrelief/post/the-final-say-in-food-safe-3d-printing

Anywhere bacteria can get. So can warm soapy water.

Interesting link, leading to:

https://www.researchgate.net/publication/375373442_The_Impact_of_Sanitation_Methods_of_3D-printed_Parts_for_Food_and_Medical_Applications

I may ask some students to replicate it.

Cheerio,