# Can I still get black V3? **URL:** \ **Category:** Form 2\ **Created:** [June 6, 2018, 11:29am UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087 "2018-06-06T11:29:40Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![eaelec](https://avatars.discourse-cdn.com/v4/letter/e/13edae/32.png) [@eaelec](https://forum.formlabs.com/u/eaelec)\ **Post date:** [June 6, 2018, 11:29am UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087/1 "2018-06-06T11:29:40Z")
I have a nearly new resin tray filled with black V3 but the cartridge is nearly empty. When I ordered a new cartridge I got V4. What am I supposed to do with that? Can I mix V3 and V4? ---
**Author:** ![JohnHue](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@JohnHue](https://forum.formlabs.com/u/JohnHue)\ **Post date:** [June 6, 2018, 11:58am UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087/2 "2018-06-06T11:58:13Z")
> [@eaelec](#): > > Can I mix V3 and V4? Yes > [@Formlabs Resin Releases - Master List](http://forum.formlabs.com/t/formlabs-resin-releases-master-list/16960): > > This thread was begun in an effort to document changes between the different resin formulations. Resin Version Announced Changes / Comments Clear V1 [May 2013](https://formlabs.com/blog/announcing-clear-resin/) Clear V2 [Nov 2014](http://forum.formlabs.com/t/is-v1-resin-gone-yet/2736/3) Reduced yellowing; [added support](http://forum.formlabs.com/t/new-year-new-resolution/3182) for 200μm. Clear V3 [April 2016](http://forum.formlabs.com/t/new-resin-formulation/7829/6) Color may be [slightly more grey / blue](http://forum.formlabs.com/t/new-resin-formulation/7829/6) out of printer, but more stable over time. Discontinued [shortly after launch](http://forum.formlabs.com/t/clear-and-black-resins-v3-not-available/13689/4) due to [manufacturing issues](http://forum.formlabs.com/t/what-happened-to-version-3-resins/9748/2). Clear V4 [Late 2017](http://forum.formlabs.com/t/upcoming-resin-re-formulations/15160) Mixable with Clear V2 and yields [identical results](http://forum.formlabs.com/t/upcoming-resin-re-formulations/15160/20). (Note in Oct 2017 Preform 2.… As for the question in the title : AFAIK once Formlabs releases a new resin they phase out the old one and you can’t get it anymore, unless a 3rd party supplier still has some stock lying around (unlikely a few months after the new version has come out) ---
**Author:** ![eaelec](https://avatars.discourse-cdn.com/v4/letter/e/13edae/32.png) [@eaelec](https://forum.formlabs.com/u/eaelec)\ **Post date:** [June 6, 2018, 2:17pm UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087/3 "2018-06-06T14:17:29Z")
When I put in the V4 cartridge I get an error message about version mismatch and the only option is “abort”. How to I override the mismatch? ---
**Author:** ![JohnHue](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@JohnHue](https://forum.formlabs.com/u/JohnHue)\ **Post date:** [June 6, 2018, 2:32pm UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087/4 "2018-06-06T14:32:46Z")
Set the V4 resin in preform and you’ll get a prompt to override on the printer. ---
**Author:** ![DKirch](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/dkirch/32/20300_2.png) [@DKirch](https://forum.formlabs.com/u/DKirch)\ **Post date:** [June 6, 2018, 8:26pm UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087/5 "2018-06-06T20:26:21Z")
@eaelec You can absolutely reset your resin tank from V3 to V4! John above me is correct, but I’ll offer a few more details about the process just so it’s clear. 1. Make sure you have the _new_ resin cartridge inserted in the Form 2(V4 in this case). 2. Make sure you set the print material to V4 in PreForm _before_ sending the part to the printer. 3. Send the print to the printer as normal and try to start it. 4. An error screen should appear saying the resin in the tank and cartridge don’t match. On this screen we would expect to see a button that says “Ignore.” 5. Hit the Ignore button, and the tank will be reassigned to your new material. Obviously, this is not a process we recommend most of the time, but because these two materials are pretty close you should be OK. That being said, I would still try to scrape out as much of the old material as you can just to be safe. I hope that helps! ---
**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\ **Post date:** [June 13, 2018, 8:26pm UTC](https://forum.formlabs.com/t/can-i-still-get-black-v3/19087/6 "2018-06-13T20:26:23Z")
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