Making glass gaskets on a 3d printer

Dear watchmakers,

I am investigating if I can print glass gaskets on a 3D printer, especially what filament to use. So far I have tried PLA and ABS (Bambu) and they come out very nicely. Next to size durability is obviously what we need to have. Shape is very nice and I could put these in the middle case and press the glass in. So so far so good. But will it shrink in due time, will it do well if getting exposed to water for a longer period. In short many questions. Printing in Peek or Delrin is for these highly technical materials outside the capabilities of my printer.

Any one tried this before and care to share his experience and with what type of filament?

br

Ron

As second thought, there is some hytrel filament from chemille but there so many variations, over 80, so very difficult to make anneducated guess. I have some TPU on order and the special TPU feeder for the Bambu on the way so I will give that a go to.

Thank you. Unfortunately the gaskets you can buy outside the big brands often are a different size compared to what Cousins or other big houses sell. F.e. an Oris has a nice glass in the caseback with a circular print. The gaskets size which fits the case back is 0.3 mm thick and the sternkreuz Cousins sells is .35, so this simply does not work. Today I had a nice vintage Tissot with a square glass with rounder corners. Impossible to source a new one.
So printing is my only option.
I found out the PLA, PETg and possible the ABS are bit stiff.
So when the TPU from Bambu (95) is in and the PP too can make some progress. Printing with the TPU unit from Bambu: I hope to find out it is relatively easy with this extra tool and a real clean nozzle. My H2C has a heated chamber, so another element I can tune to get the best setup.

I was dealing with a similar problem when trying to replace nylon crystal gaskets. I also tried a combination print, using harder PLA at the bottom and softer TPU building up around the crystal (to allow more give and thus better sealing properties). The materials actually bonded together quite well, but ultimately I was never able to achieve the results I was looking for.
Next step would be to print a mold and pour nylon gaskets but I didn't come to it yet.