3DPrinting

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How do you Sand Coloured PETG without loosing the Colour? Are there any Methods to Preserve or Regain the Colour? (lemmy.blahaj.zone)

submitted 3 days ago by Mr_Mofu@lemmy.blahaj.zone to c/3dprinting@lemmy.world

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After Having experimented in Making Perfectly Smooth Surfaces for about a Year now within the Print Process itself, Its time I Capitulate and start putting in some more Work and Sand it all smooth!

Just a bit of an Issue... Whenever I sand Coloured PETG, it looses its Colour and turns into that Broken Plastic White.

As someone who hasn't had to Fix something like that before, I'm not sure where to even start Fixing this? Can it be Avoided in the Sanding Process, or can the Colour be Regained afterwards?

I have heard of People Treating it with Heat and Vasaline to get the Colour Back, what kind of Methods do you all use and how reliable are they?

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[–] cmnybo@discuss.tchncs.de 4 points 3 days ago (1 children)

How fine are you sanding it? Coarse sandpaper makes the PETG turn white and fuzzy. That goes away after wet sanding with 400 to 600 grit. I usually go up to 2000 grit to get a smooth surface. The color is still quite a bit lighter after sanding though.

[–] Mr_Mofu@lemmy.blahaj.zone 1 points 3 days ago

I have been using more Coarse ones thus far yes... I do wanna achieve the same colour as the original Plastic tho