phrozen Aqua-Gray 4K Resin for High-Precision 3D Printing,405nm LCD UV-Curing Photopolymer Resin for Low Shrinkage, Great Detail, Low Odor, Non-Brittle (1KG)

I’m new to resin printing, but in the past 2 weeks I’ve tried both the Anycubic Eco Resin and this Phrozen Aqua-Gray 4K. The Anycubic Eco has been much better both in terms of build quality and smell. This Phrozen resin is very smelly to me. I’m sure it’d be fine for those that have good ventilation, but it was terrible for me as I only have one small window to vent my space. I’m not sure how this qualifies as “low odor” but I’d very much recommend using only in very well ventilated area and possibly even a respirator. The build quality was fine, but I actually got better prints with the Anycubic Eco resin. The Phrozen came out brittle. This very well could be my print settings as I’m using Chitubox’s default profile for this resin with my Phrozen Sonic mini 4K and I had to create my own profile for the Anycubic Eco (0.05mm layers, 9 second exposure, 60 second base layer exposure, 8 base layers). Lastly, it’s much cheaper buying directly from Phrozen. Not sure why Amazon tacks on an extra $10/kg. Overall, it was definitely usable, but it seems like there are better products out there in the market.

Holds the details for the smaller prints. Little shrinkage for the large multi-piece prints. I pay the extra couple of dollars for this resin over others Ive tried for its reliability, quality and ease of use. Would recommend. Just make sure to leave enough for me.

(UPDATE 10/14/20) so now with stocks lasting Ive been able to pickup 6 more bottles for a nice stock of resin. Already gone through 1 1/2 bottles in the last week sense October 5th. I have notice with this new stock the sediment issue I said bellow is not affecting me so quickly as the first sept batch did. This batch is doing much better. Still separates quickly and needs mixing every other print. But at least now I know what to expect with batches that are not very good. So been using this resin now for a week. I was only able to nab a single bottle before selling out and hopefully get more with restocking. The review. So far my week of use and constant printing Im loving this resin! The detail and fast curing with a monochrome setup is great! Im using a mars 2 Pro at 2sec times. The details are fantastic and on par with some higher end resins that would normally cost around $70-$80 for a bottle. This new 4k resin knocks it out of the park... But it isnt without fault as well. I didnt notice until I was passing my 5-6 days of printing, that the resin does have 2 issues. 1st: it separates very quickly, so this does need regular mixing. Most resins I use I can sit for 3+ days before noticing separation. This resin does it within 24hrs of sitting. So mix often! 2nd: I noticed a problem with sediment build up. My preference in resin is elegoo abs and FTD Industrial Blend and both those resins I never had to consider sediment build up. But with this new 4k resin I started noticing support failure after day 4, day 5 print fails. I cleaned my vat and clogged the strainer because the build up was that bad after almost a week. That sediment also was sticking to the models to, so I had to use my brush to clean it up. Best way to put it is this resin prints fantastically well for how cheap it is IF! you have a monochrome screen to print with. But comes with the maintenence of a resin from 2018.

I think this resin produces small details slightly better than the non-4K resins like the Aqua Green. Ive been using this resin with my Sonic Mini 4K for awhile now and its amazing. Great detail and cures quickly. Will keep buying this as long as the price remains competitive.

It works well with my Phrozen sonic 4k mini. Like most resins it has a strong odor, but after you wash it with alcohol or ethanol the odor is gone.

4k sonic mini. I feel like I didnt see a difference in the details

I just recently purchased a Phrozen Sonic Mini 4K and managed to grab some Aqua 4K Grey as well (it is hard to find in Canada so had to order it here). I havent used other brands of resin yet, but so far Aqua 4K resin works great! There doesnt seem to be much shrinkage; the resin smell is relatively mild (in my opinion); print quality is fantastic and works really well at 2.5s exp @ 50um and 1.9-2s exp @ 30um layer heights. I accidentally dropped part of a model, comprised of detailed fingers/nails, from about a foot onto my desk and nothing broke. You can snap thin parts if youre not careful but the prints seem durable enough for gaming and certainly strong enough for show-pieces. Overall Im quite happy with this resin!

This stuff works really well on my Phrozen mini 4k. Play with your Citubox settings a little bit but once you are dialed youre set

Item is being sold as a non-toxic solution. Bottle says it is definitely toxic and carcinogenic.

The resin is great to work with. Unlike the Phrozen Aqua 8k resin which is brittle after printed, there is a some a good amount of flex with the material and the supports just peel away and leave little damage to the part after just printed and washed. The resin consistency is really good too and I keep track with the resin with a resin calibration test (Cons of Calibration) with every print to keep track of the exposure and the exposure doesnt change on me. Ive tried several resins including a mix of Fast with Tenacious before to get flexible parts and even used onyx resin but this is better for miniatures and figures.