Jump to content
Ultimaker Community of 3D Printing Experts

Submerging PLA when printing with PVA

Recommended Posts



I just did my first print with PLA and PVA support. It's a big print and it took about 30 hours to finish. Now I want to remove the PVA support. 


Is it critical to submerge the entire PLA into water or can I simply only submerge the parts with PVA?


I know that PLA can be affected by water hotter than 35 degrees Celcius, and I want to be as gentle with my print as possible so I won't damage it.


Do you have any tips and tricks? 


Thanks :-)

Share this post

Link to post
Share on other sites

Hi @nicklas

if there are parts of your print that don't have any PVA on it, you don't necessarily need to submerge it in water. The water is solely used to dissolve the PVA. If you have a method that prevents your print from tumbling over, or sink, and only keeps the PVA under, go for it. 


With most prints, I think that won't be the case though. But you don't necessarily need to keep it at 35ºC, I think our pages say don't go higher. But you can go a bit lower 🙂


Hope this helps!

Share this post

Link to post
Share on other sites

I normally just have a big bucket of water to dissolve the PVA. the water only gets replaced when to milky, so it's more or less always room tempter around 17-20ºC. so in my experience PVA will dissolve fin in way lower tempters. I speed up the proses by brushing of the PVA when it gets mucous. if it takes to long or are hard to remove I would say its probably more because the water is saturated, then because of the tempter. So if you are afraid to damage the PLA just let it sid longer in colder water and you should be fin. 


In general its only the parts with PVA that needed to be in water. But depending on the model and how the PVA support is, there can be some stringing caught between the PLA layers. 


Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Our picks

    • Ultimaker Cura | a new interface
      We're not only trying to always make Ultimaker Cura better with the usual new features and improvements we build, but we're also trying to make it more pleasant to operate. The interface was the focus for the upcoming release, from which we would already like to present you the first glance. 
        • Like
      • 114 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!