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maximo weintraub
(@maximo-weintraub)
New Member
piece that has to float in gasoline

Hello, I was trying to make a piece that has to float in gasoline, I already tried it with PETG and it didn't float, so the question is. Do you know of any filament that floats in naphtha and lasts? I'm using google translate, if you don't understand something ask me haha

Best Answer by Artur5:

What Zoltan said. Apart from resisting the chemical action, this part should be perfectly sealed because gasoline is less dense than any filament. In order to float it must be hollow or at least with a low infill percentaje. If it isn’t gasoline tight, it won’t float for long.

I’d suggest nylon. Good chemical resistance and low density, which makes it easier to float. Polypropylene is even less dense and would do also for gasolines with high aromatic content but not for non-leaded gasoline.  TPU filaments wouldn’t be my choice. More more dense than nylon or PP and chemically incompatible with most gasolines.

Posted : 05/06/2022 4:57 am
Zoltan
(@zoltan)
Moderator
RE: piece that has to float in gasoline

Your model must be hollow and water (gasoline proof)

even an old man can learn new things 🙂
Standard I3 mk3s, FW 3.10.1 RC1, MMU2S, no closed box, Fusion 360, PrusaSlicer, Windows 10
PRUSA MINI FW 4.3.4, Prusa Connect Beta

Posted : 05/06/2022 5:22 am
Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: piece that has to float in gasoline

@maximo-weintraub

 

https://ninjatek.com/wp-content/uploads/NinjaFlex_CR.pdf

 

https://ninjatek.com/shop/ninjaflex/

 

Enjoy

 

Swiss_Cheese

The Filament Whisperer

Posted : 05/06/2022 6:15 am
Artur5
(@artur5)
Estimable Member
RE: piece that has to float in gasoline

What Zoltan said. Apart from resisting the chemical action, this part should be perfectly sealed because gasoline is less dense than any filament. In order to float it must be hollow or at least with a low infill percentaje. If it isn’t gasoline tight, it won’t float for long.

I’d suggest nylon. Good chemical resistance and low density, which makes it easier to float. Polypropylene is even less dense and would do also for gasolines with high aromatic content but not for non-leaded gasoline.  TPU filaments wouldn’t be my choice. More more dense than nylon or PP and chemically incompatible with most gasolines.

Posted : 05/06/2022 8:09 am
Netpackrat
(@netpackrat)
Estimable Member
RE: piece that has to float in gasoline

A lot of plastic carburetor floats are made from a material with a trademarked name of Nitrophyl.  I would start by trying to find out if that matches up with a generic type of plastic, and if so, whether or not it is available as a filament.

Posted : 05/06/2022 2:04 pm
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