# Problems with Grey Resin V4 **URL:** \ **Category:** Support & Troubleshooting\ **Created:** [May 8, 2019, 3:33pm UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324 "2019-05-08T15:33:55Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Patricia](https://avatars.discourse-cdn.com/v4/letter/p/8dc957/32.png) [@Patricia](https://forum.formlabs.com/u/Patricia)\ **Post date:** [May 8, 2019, 3:33pm UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/1 "2019-05-08T15:33:56Z")
Hi, I’m still using a Form 1+, recently I bought new resin grey v4 (my last bottle was grey v2). I used a new tank for the new resin, first print came out perfect and after that a bunch of fails. same model, same orientation and everything, I checked the mirrors, they were clean, the tank is new. After about 5 bad prints I was able to print 4 ou 5 parts fine, and now its failing again. I have no idea what to do. When it fails I try new orientation of the model, but the results seem random. Anyone else with the same problem? I notice that this resin makes a lot more bubbles than the previous one (grey v2). Is it normal? ---
**Author:** ![eaelec](https://avatars.discourse-cdn.com/v4/letter/e/13edae/32.png) [@eaelec](https://forum.formlabs.com/u/eaelec)\ **Post date:** [May 9, 2019, 3:18pm UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/2 "2019-05-09T15:18:29Z")
Patricia: You are not the first person to complain about V4 on this forum. In my opinion it is an inferior product compared with V3 (never tried V2). I have switched to a 3rd party resin for grey. If you use the forum search feature and type in “grey V4” you will find many threads like this: > [@Grey V4 versus V3?](http://forum.formlabs.com/t/grey-v4-versus-v3/19901): > > I just switched from V3 to V4, I seem to be seeing more failures. is it just a run of bad luck on the first few prints or does V4 require more support than V3? ---
**Author:** ![Patricia](https://avatars.discourse-cdn.com/v4/letter/p/8dc957/32.png) [@Patricia](https://forum.formlabs.com/u/Patricia)\ **Post date:** [May 10, 2019, 8:26am UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/3 "2019-05-10T08:26:31Z")
Yes, I read some of the complaints like mine. What 3rd party resin do you recommend? ---
**Author:** ![eaelec](https://avatars.discourse-cdn.com/v4/letter/e/13edae/32.png) [@eaelec](https://forum.formlabs.com/u/eaelec)\ **Post date:** [May 11, 2019, 1:08am UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/4 "2019-05-11T01:08:40Z")
I’ve bought 1 litre of Digital Forge last resin last year and it’s not as good as V3 but a lot better than V4. But it has a stronger odour than the formlabs resins. A couple of months ago Digital Forge announced they have a new improved formulation for their grey which I’ll probably try soon as my current supply is almost gone. I should add, if you are printing large parts at the lower resolutions V4 can work, in my case everything I’m doing is very small and highly detailed so I need the highest resolution. ---
**Author:** ![eaelec](https://avatars.discourse-cdn.com/v4/letter/e/13edae/32.png) [@eaelec](https://forum.formlabs.com/u/eaelec)\ **Post date:** [May 19, 2019, 12:12am UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/5 "2019-05-19T00:12:10Z")
I haven’t tried it, but a lot of people on this forum have gone over to dental model resin instead of standard grey. ---
**Author:** ![Patricia](https://avatars.discourse-cdn.com/v4/letter/p/8dc957/32.png) [@Patricia](https://forum.formlabs.com/u/Patricia)\ **Post date:** [May 24, 2019, 7:37am UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/6 "2019-05-24T07:37:18Z")
Thanks! I’ve been using an old Maker Juice bottle and guess what it has a much better success rate. Form Labs support advise me to filter the resin with a 190 micron paint filter. It actually works but I need to coil it every 2 prints. ---
**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 7, 2019, 7:41am UTC](https://forum.formlabs.com/t/problems-with-grey-resin-v4/23324/7 "2019-06-07T07:41:43Z")
This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.