3DPrinting

21751 readers

8 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

Rules

No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
Be respectful, especially when disagreeing. Everyone should feel welcome here.
No porn (NSFW prints are acceptable but must be marked NSFW)
No Ads / Spamming / Guerrilla Marketing
Do not create links to reddit
If you see an issue please flag it
No guns
No injury gore posts

If you need an easy way to host pictures, https://catbox.moe/ may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 2 years ago

MODERATORS

j4k3@lemmy.world

andypiper@lemmy.world

GrayBackgroundMusic@lemmy.zip

Regaining Sanded PETG Colour: Heat Didn't Quite Work for Dark Parts... (lemmy.blahaj.zone)

submitted 2 weeks ago by Mr_Mofu@lemmy.blahaj.zone to c/3dprinting@lemmy.world

4 comments fedilink hide all child comments

Continuation from this Post: https://lemmy.blahaj.zone/post/36954883

After many of you Suggested that Heat could be a Potential Solution to Regaining Sanded PETG Colour, I got myself a Heatgun Capable of 600c°.

While it did Improve the Colouring, Especially for Darker parts it wasn't Enough. To be a bit more Specific, Both Green and Yellow Parts Fully did regain the Colour Red Improved a Lot, but not quite Satisfactory And Black did make a Difference, but its not Nearly Close enough, being a Matte Dark Gray instead of... Black

I've noticed that the Black only did regain its true Colour once actively Melting and Warping which doesn't help... Otherwise its a Light/Dark Gray Matte Black.

So I think the Heatgun Method doesn't quite hold for Dark Parts. What other Methods of Regaining Colour are there?

I do still have MEK that I could Try. I also Heard that Clearcoat could Work and that there are 3D Printing Specific Brands, should I give that a Shot?

you are viewing a single comment's thread
view the rest of the comments

[–] daannii@lemmy.world 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Did you try the plastic restorer I suggested? You can get it hella cheap on alexpress.

"Headlight restoration" is usually what it's called.

It's one of the top comments on the post you listed.

I've never had very good luck with heat to smooth layer lines or sanded surfaces.

For the plastic to liquify (or melt to that degree so it melts down, not just moldable) it has to get pretty hot. 240c. (Petg) Which will in turn make the whole thing start to deform.

[–] definitemaybe@lemmy.ca 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Not OP, but that search brings up a bunch of different products on AliExpress: black paste, white paste, sprays, creams, liquids... Do you know if it matters?

Thanks for the tip, regardless. They're only a few bucks each, so 8 could try a few, but if you have one you know works for PLA and/or PETG, I'd appreciate knowing what worked for you!

Edit: I just thought to look at your gallery again and saw the headlight restoration bottle in the background in one of the pics, so never mind!

[–] daannii@lemmy.world 2 points 2 weeks ago* (last edited 2 weeks ago)

I saw your edit but yeah. It's a clear liquid. Watery.

It actually has a really pleasant soap-like smell.

I apply with a folded paper towel. You could use a sponge to make sure it's 100 % lint free. But paper towel seemed fine for me.

I basically applied it like if you were using nail polish remover.

There are probably different approaches. I don't think it's going to matter too much. Just note its intended to be a wipe-on. Not a soak. Not a slather-on.

So it is going to go far and last you for many projects.

https://a.aliexpress.com/_m03WLU5

I think this is the same stuff.

I've bought it twice on AliExpress with different labels. But seems like the same stuff. Can't seem to find the last one I bought. (The one in the image).