Brian
1
I just stumbled across this video on flexible materials, does anyone have experience with these good or bad?
Would love to see some pictures, videos, use-cases and print settings for these materials.
How does it compare to regular Flex PLA?
3 Likes
How is it different form Flex PLA? As in, what is it?
Brian
3
Have you watched the video? It’s definetely different from plain flex PLA. I’ll shoot Kai Parthy an email - see if he wants to shed some light on the matter.
Hi Brian,
the POROLAY series ist totally different to homogene (100%) materials as flex PLA or other flexibles.
After printing your object in the same way you do it with other stiff filaments you rinse your object for 1-3 days in water.
But please read here some extracts, and open later the attached *.pdf to find all informations at the momentually available 4 different Filaments.
POROLAY is a serie of experimental filaments, printable with standard printers at about 220 - 240°C.
It´s a kind of meta-material with different properties at different stages:
- in it´s delivery form, it´s hard and easy to print
- after rinsing in water, remaining in water it´s very soft and gelly-like, print sponges with,
-
dryed it´s visco-elastic, depending on quality of rinsing, it will be soft, leather like, or similar as cardbord or heavy paper, depending on which POROLAY you are using.
…
now please read the pdf.
If you found new applications for Porolay, please publish your results here 
Please be clement with me, I cannot (less time) give further rapid support. It´s an experimental filament for science and makers.
all the best from cologne
Kai
porolay-overview-3dhub-a.pdf (15.4 KB)
obelix
6
Hello @kai_parthy
i bought the LAY-FOMM 40. Printing went fine but i tried twice the rincing and hade some problems. I rinced one print for a day and a second one for three days (pictures are from this one) with normal tap water. It was flexible and soaky as expected but as you can see in the pictures i think i didn’t get all the PVA out.
The other problem i had was that the prints started falling apart quite quickly (if i pinched it with my fingers for example), it was a big mess with all the sticky PVA… I just read the PDF and will retry with warm water and multiples cycles.
Printed with 220 / 40 °C on blue painter tape (Ultimaker 1).
There is at least one feedback i can give. If you throw it on the ceiling it will remain there 
Hello Obelix,
the layfomm 40 is the softest version (you wrote falling apart) , layfomm60 is more stiff,
both need some periods of fresh water for best rinsing results,
yes PVA sticks, it´s also used as glue,
best
Kai
obelix
8
OK, i will try with multiple rincing and drying write the results here. Do you know if using filtered water (BRITA or similar) makes it better/worse?
should not, some % alcohol (ethanol) did it once faster here, but tap water is enough
