# Water resistance of Formlabs resins

**URL:** <https://forum.formlabs.com/t/water-resistance-of-formlabs-resins/10250>\
**Category:** General Discussion\
**Created:** [October 31, 2016, 12:55pm UTC](https://forum.formlabs.com/t/water-resistance-of-formlabs-resins/10250 "2016-10-31T12:55:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![CREAT3D](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@CREAT3D](https://forum.formlabs.com/u/CREAT3D)\
**Post date:** [October 31, 2016, 12:55pm UTC](https://forum.formlabs.com/t/water-resistance-of-formlabs-resins/10250/1 "2016-10-31T12:55:10Z")

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Hi all,

New here. Please be gentle.

We are looking to undertake a project where we require the parts to be water resistant long term as they will be submersed in an aquarium.

Does anyone have any experience of the long term effects of water on Formlabs printed parts, as the solvent compatibility tests on the Support pages only run for 1 hour: [https://formlabs.com/support/finishing/solvent-compatibility/](https://formlabs.com/support/finishing/solvent-compatibility/)

Many thanks.

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**Author:** ![ChristopherBarr](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/christopherbarr/32/645_2.png) [@ChristopherBarr](https://forum.formlabs.com/u/ChristopherBarr)\
**Post date:** [October 31, 2016, 1:30pm UTC](https://forum.formlabs.com/t/water-resistance-of-formlabs-resins/10250/2 "2016-10-31T13:30:48Z")

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IIRC, these plastics are not food - or fish - safe. It would endanger the critters in the aquarium to have this plastic in there with them.

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**Author:** ![aad345](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/aad345/32/5444_2.png) [@aad345](https://forum.formlabs.com/u/aad345)\
**Post date:** [October 31, 2016, 2:47pm UTC](https://forum.formlabs.com/t/water-resistance-of-formlabs-resins/10250/3 "2016-10-31T14:47:51Z")

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I had printed a handle using white resin to be used in moist environment and it is holding up nicely so far (3 months). I dunno how well the resin can handle being submerged though.

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**Author:** ![George\_Earussi](https://avatars.discourse-cdn.com/v4/letter/g/aca169/32.png) [@George\_Earussi](https://forum.formlabs.com/u/George_Earussi)\
**Post date:** [October 31, 2016, 4:57pm UTC](https://forum.formlabs.com/t/water-resistance-of-formlabs-resins/10250/4 "2016-10-31T16:57:32Z")

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how long would a bees wax coating on this part last underwater?