eSUN TPU 95A ripped off parts of smooth build plate

I printed the first time real TPU (eSUN TPU 95A ) on my H2S and after the successful print
when removing the part I ripped off parts of the smooth build plate. I put 3DLAC sspray glue on it
to have a separation layer. Which build plate is most secure to print TPU parts?
If I release a model and users destroy their build plates, I guess then some people are furious.
I read to put Isopropanol should help releasing the part. Put I peeled of the part with my hand,
there was no problems until I realized there are parts of the build plate on the print.
I had ASA/ABS problems where it was not possible to take the part from the build plate until I started using 3DLAC spray glue.
Any feeedback is welcome! Thank you.

i use glue stick for TPU, it helps with separation

2 Likes

@h3li0 which build plate do you use for TPU prints?

smooth PEI as well

1 Like

I use glue for every print except PLA on PEI. And sometimes even for PLA, rather than wash off the glue.

A print that does not release easily after cooling to room temperature spends 10-15 minutes in the freezer. Then it will usually fall off the plate.

Which glue do you use? I use 3DLAC most times and apply it every 10 -15 prints.
I just wash my build plates if it is dirty and I have to print some multicolor logo that
should not be contaminated with other colorss.

I am too much of a cheapskate to spring for special 3D-printing liquids and sprays. Glue sticks leave clumps and lines, and I’ve had inconsistent results with hair sprays.

I let chunks of glue stick dissolve for a day or two in a small spray bottle with 91% IPA. The chunks stop dissolving when the solution is saturated, and the ratio is correct. If there are no chunks present, don’t use the spray - there is not enough glue. I put the plate in a cardboard box (to control overspray) and spray a thick coat. Spreading with a fingertip can help, but it will usually level itself out before it dries. Putting the plate on the heated bed can speed drying.

If I think I’ve accidentally touched a plate surface, another spray seems to seal the fingerprint. Adhesion marks from a previous print can also be “healed” with more spray.

1 Like