PETG Basic, Oily surface finish, but only certain colors, appreciate inputs

Bambu Filament and Accesories Filament
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Imo this goes outside the general dissatisfaction many are having with the new Basic.

Short ver:

Since the discontinuation of HF I’ve only printed new Basic Grey(30107) and Dark Beige(30403), both offered similar finishes to the old HF - scatter light no matter the angle. Not matte, but nice.

But Basic Yellow(30402) has, across multiple batches, consistently the same oily finish - TPU 95HF level oily, in all kinds of indoor lighting. All samples are sliced the same - full manual calibration vs. all default, same models vs. simple cubes, I’ve tested everything - same night-n-day contrasts. (Grey, not as good as Dark Beige, but nowhere near Yellow bad)

Additional contexts
Temp: Non-factor. I normally print higher, but default 245C also produced exactly the same differences;

Calibration: Bed, vision, flow rate, pressure advance, shrinkage, blast oven, freshly bone dried, everything, and consistent across all test pieces.

Model Geometry: Tested on the same models, tested on Cubes, Boxes, no differences.

“across multiple batches”: Yellow(30402) with batch number ending in D, and now ending in H, no differences.

Request
If you have printed other new Basic colors and noticed similar inconsistency across colors please let me know. They already offered to exchange the order so I’m curious if any other colors aren’t also so plagued by it ↓ .

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I’m not looking for alternative PETGs yet, Basic’s Dark Beige have served me well, little complaints about it…. but Dark Beige…. just kind of tired of it after the 30th roll lol.

I suspect that some additives must have been different for yellow, for every batches, for no good reason as HF yellow had none of this mess, but Customer Support “Filament Specialist” insists on those being micro-differences across batches…. (between Yellow vs. Dark Beige. Their word.) sure lol.

Edit: updated some words.

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Have you noticed the dark green having an odd blu-ish cast? The roll I bought to try does.

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Only those 3 mentioned.
I would try all but that’s kind of excessive when all I want is another single color that doesn’t look worse. I use them largely for batch jobs, can’t really AMS auto-refill with assorted colors.

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I don’t see anywhere that says every PETG Basic is gonna have the same surface shine, so I really don’t understand the indignation.

The colors are the colors.

Help me understand how this is a problem.

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I’d say the surprising result is how matte the other two Basic’s are, I didn’t realize the new formula was that matte.

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I think this is missing my point somewhat, I want to know if any other colors are similarly not so excessively oily, and that’s not unreasonable to ask.

But on to claim/expectation part:

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If they offer me an exchange, I’ll take it, especially as their sample page literally shows matte / fine looking yellow prints
Almost every single HF PETG offered that light scattering, and so did the basics I’ve tried before yellow, so I’d say some kind of inert expectation here isn’t so strange. Anyhow, my intention for this thread is nevertheless not about if the product had misleading advertisement.

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I’ve seen pictures from the other HF/Basic post… apparently black is pretty bad, but that’s about what I can tell. I certainly hope that, given the variation between colors, there can be some more info here to (collectively) have a better picture. Would help others choose too.

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Maybe if you clarify what you are looking for that would help. It’s not really important if anyone has noticed a similar inconsistency, is it? That’s what CF was responding to.

If you are looking for a specific matte PETG Basic color, ask for that directly.

Before seeing your post, I would have said none of them, but now you are making me wonder.

So if you had a choice of any of the new PETG Basic colors to get a print sample of, which one would it be?

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Alright, fair enough.

The grey is probably what you would consider “oily”

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Inconsistent as in like, some are oily/whatever the word, some aren’t. It could be worded more straightforwardly. Either way, I intended to ask for the same thing.

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If my experience with miniature painting has any bearing on what is happening here, then I would say that no two pigments have exactly the same properties. Some of the issues you are describing may be beyond what Bambu can do anything about. I am not sure what the solution could be if that is the case though, since not offering a colour at all seems to be a worse choice than having a less than idea colour property. Of course, this is me assuming that the colour and finish of a filament has related issues in the first place.

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Hot melting plastics would have two possible sources, pigment chemicals and general additives, for what I think really is micro-texturing on the surface. Things like Titanium Oxide for white and whatever carbon stuff for black filaments are indeed pretty significant and why these often behave differently than the rest. Never heard of yellow/beige filaments being unique before however, and the HF variants of similar colors were simply nothing noteworthy.

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esun matte petg is very matte and looks close to bambu petg hf

printing temperature and speed will affect the shine on a filament, especially with bambu petg

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To be fair it is possible to engineer a match if you pay the cost.

For example Colour Forge make spray paints that are straight copies of the GW (Citadel) colours, to the point where you can’t tell them apart.

Of course, the price is higher.