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Nothing sticks to textured sheet, not even PETG!  

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BartPe
(@bartpe)
New Member
RE: Nothing sticks to textured sheet, not even PETG!

Fwiw, new to 3D printing and had same adhesion issue with Prusa Mini textured sheet and PETG.

Tried these suggetions:

- cleaned with dish soap and warm water (used nail scrub to clean)

- wipe dry with paper towels

- cleaned with IPA (always use paper towels)

Perfect prints and perfect adhesion since then (clean with IPA and paper towels between prints).

Posted : 30/06/2021 6:29 pm
matthewlloyd
(@matthewlloyd)
Active Member
Same issue - ships with some kind of wax

I had exactly the same issue with mine, received May 2021. I could not get ABS to stick even slightly at 110C, and the same filament sticks so well to the smooth sheet I have to use IPA to help remove it. Thanks to all the tips in this thread, now it sticks perfectly to the textured sheet too.

It seems like the textured sheet ships with some kind of waxy substance left over on the surface from manufacturing. If you run it under the tap you can see it's strongly hydrophobic, and lots of little water drops and bubbles sit on the surface. It's slightly oily to the touch but doesn't actually come off on your fingers.

I washed mine with dish soap and warm water, and passed the rough side of a scrubbing sponge over the entire surface about ten times. Then I rinsed, and wiped the surface down with IPA. This seems to have removed all the wax, and now the adhesion is much better. The surface is still slightly hydrophobic but water doesn't form small drops or bubbles.

Posted : 31/07/2021 3:11 am
cwbullet
(@cwbullet)
Illustrious Member
stick

 

Posted by: @bartpe

Fwiw, new to 3D printing and had same adhesion issue with Prusa Mini textured sheet and PETG.

Tried these suggetions:

- cleaned with dish soap and warm water (used nail scrub to clean)

- wipe dry with paper towels

- cleaned with IPA (always use paper towels)

Perfect prints and perfect adhesion since then (clean with IPA and paper towels between prints).

Keep cleaning it and consider squishing the filament a little extra.  It will stick.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 31/07/2021 11:32 am
jsw
 jsw
(@jsw)
Noble Member

I wonder if that's some kind of preservative.

Mine did not have anything like that.

All I did was wipe it off with IPA and do a new Z calibration for the sheet, which did surprise me at first at the number I had to dial down to for optimum results.

Posted : 31/07/2021 11:33 am
cwbullet
(@cwbullet)
Illustrious Member
coating

 

Posted by: @jsw

I wonder if that's some kind of preservative.

Mine did not have anything like that.

All I did was wipe it off with IPA and do a new Z calibration for the sheet, which did surprise me at first at the number I had to dial down to for optimum results.

I could be an oil or protectant.  I just know that washing it over and over again on some sheet help promote adhesion.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 31/07/2021 11:34 am
BartPe
(@bartpe)
New Member

 

Posted by: @cwbullet

 

Posted by: @bartpe

Fwiw, new to 3D printing and had same adhesion issue with Prusa Mini textured sheet and PETG.

Tried these suggetions:

- cleaned with dish soap and warm water (used nail scrub to clean)

- wipe dry with paper towels

- cleaned with IPA (always use paper towels)

Perfect prints and perfect adhesion since then (clean with IPA and paper towels between prints).

Keep cleaning it and consider squishing the filament a little extra.  It will stick.  

That's what I was trying to say. After I tried these suggestions (cleaning with dish soap, paper towels, IPA) everything was fine.

Posted : 31/07/2021 12:15 pm
matthewlloyd
(@matthewlloyd)
Active Member
Still having issues

I'm still having some issues with adhesion. 9/10 parts stick fine, but there are some places on the bed where adhesion is poor. Even on successful prints, after the sheet cools, parts don't seem to be adhered to the bed. I would definitely not recommend the textured sheet to anybody - the smooth sheet works much better. The finish on the prints on the textured sheet is really impressive, but if the plastic doesn't stick, it's just not going to be useful. I would like to try the new satin sheet, but have already spent $30 on this textured sheet which I will probably not use very often.

Posted : 05/08/2021 12:14 am
cwbullet
(@cwbullet)
Illustrious Member
Textured

 

Posted by: @matthewlloyd

I'm still having some issues with adhesion. 9/10 parts stick fine, but there are some places on the bed where adhesion is poor. Even on successful prints, after the sheet cools, parts don't seem to be adhered to the bed. I would definitely not recommend the textured sheet to anybody - the smooth sheet works much better. The finish on the prints on the textured sheet is really impressive, but if the plastic doesn't stick, it's just not going to be useful. I would like to try the new satin sheet, but have already spent $30 on this textured sheet which I will probably not use very often.

My textured sheet sticks very well.  PETG is nearly perfect,  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 05/08/2021 1:28 am
OlofH
(@olofh)
New Member
It's a feature, not a bug.

 

Posted by: @matthewlloyd

I'm still having some issues with adhesion. 9/10 parts stick fine, but there are some places on the bed where adhesion is poor. Even on successful prints, after the sheet cools, parts don't seem to be adhered to the bed. I would definitely not recommend the textured sheet to anybody - the smooth sheet works much better. 

The PETG print popping off by itself when the sheet cools is totally normal, and I see that as a feature, not a problem.

I also had this spotty adhesion at first, but scrubbing those particular areas a bit extra with soap and a sponge solved the problem for me. 

 

Posted : 07/08/2021 4:06 pm
bumgarb42
(@bumgarb42)
Active Member
My solution, fwiw

I'm new to 3D printing, but have my smooth sheet with PLA performing well.  Bought a texture sheet just for PETG and started off calibrating in the -0.3 to -0.4 mentioned for the difference between the two sheets.  Could not get a consistent stick of the PETG to even complete the calibration.  Smooshed it real good and still the PETG would not stick.  Finally found this thread but was hesitant to use an abrasive scrub pad on a brand new textured sheet since Prusa have not seemed to acknowledge that at all.

Texture sheet label: TL-21, purchased July 2021.

Based on other posts, I did the following (some of these are my own additions):

  • Put on a new pair of latex gloves
  • Washed hands with gloves on to remove any possible coating contaminants from the gloves
  • Laid out some paper towels
  • Used a microfiber cloth, hot water and Dawn to scrub the sheet using a circular motion
  • Rinsed sheet
  • Laid the sheet on the paper towels
  • Rinsed and dried gloves (hands)
  • With gloves still on, dried textured sheet
  • REPEAT as needed

For the REPEAT step, I did a test someone else mentioned where they ran their gloved hand across the texture and could feel an improvement in grip between the texture and the glove.  Before cleaning with Dawn, I noticed very little grip but I felt this difference after using Dawn.  Still, I thought it could be better.  Also, while rinsing the sheet, I noticed the rinse water on the sheet was mostly running off, I thought it could also run off better.  After a second time through the steps, there was a ton of noticeable grip between the sheet and my latex glove and the water ran off BETTER than rain on my car's windshield with RainX (if you know what that stuff is).

NOTE: I am NOT suggesting you put RainX on your textured sheet! It is only a comparison of how water runs off the sheet after cleaning with Dawn.

After this, I dialed in the calibration first try and I've done 3 prints with the textured sheet and PETG without a single issue.

Posted : 15/08/2021 1:40 am
cwbullet
(@cwbullet)
Illustrious Member
Gloves

I have never used gloves and I am not sure that degree of protection against fingerprints is needed, but t if works for you, keep doing it.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 15/08/2021 12:20 pm
Jack Chidley
(@jack-chidley)
New Member
Water Break Test

Using a Water Break Test

the water ran off BETTER than rain on my car's windshield

The water should stick like a flat sheet to the surface: if it runs off in streaks then it has oil or a hydrophobic coating and sticking may be a problem.

Posted : 15/08/2021 12:26 pm
bumgarb42
(@bumgarb42)
Active Member
Re: Water Break Test

Thanks for that information, Jack.  I'll say that my description of what I was seeing with the reference to RainX wasn't exactly clear... and that I did not fully understand what people were desiring to see in the Water Break Test.  I have Googled that and read up and can say that I believe I was still getting the correct result even though I didn't describe it correctly.   At least from the Google result I read: https://www.btglabs.com/blog/the-water-break-test-as-a-surface-measurement-gauge - "in the case of the water break test, should result in the water sliding off the surface in an unbroken sheet. "

It was my intent to express that no water was beading up or streaking like it would on a windshield but instead the textured sheet was completely shedding all water, no beads or anything remained.

My sheet seems to be working flawlessly now after the steps I took.

If that was what you were also intending, then we are in agreement.  Your statement that the water should "stick" to the texture sheet seems counter to what I read on online and the impression I got somewhere from this or another thread.  I could still be mistaken, but as I said, my texture sheet seems to be 100% better than what it was before I cleaned it.

Thanks!

 

Posted : 15/08/2021 6:08 pm
Brad
 Brad
(@brad-2)
Trusted Member

Very hot water from the tap usually runs/slides straight off the clean side of my sheets but sticks to the bottom (greasy) side.

Posted : 16/08/2021 10:32 pm
Jack Chidley
(@jack-chidley)
New Member
Water break

If that was what you were also intending, then we are in agreement

I think that if it looks like the video, then we agree! English is a tricky language. I have trouble expressing myself, understanding things and spelling; it’s my mother tongue.

Posted : 17/08/2021 11:40 am
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